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Best Synonyms Antonyms Dictionary Apps

245+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated August 2026

Out of 245+ synonyms antonyms dictionary apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Synonyms Antonyms Dictionary Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoSep 2026
2Synonyms Antonyms DictionarySynonyms Antonyms DictionaryFree2.0★ (2)NoNoAug 2026
3Synonyms & Antonyms DictionarySynonyms & Antonyms DictionaryFree2.7★ (6)NoNoAug 2026
4Advanced Dictionary&ThesaurusAdvanced Dictionary&ThesaurusFree4.7★ (4.6K)NoYesAug 2026
5Advanced English Dictionary.Advanced English Dictionary.$2.994.7★ (241)NoNoAug 2026
6Power ThesaurusPower ThesaurusFree4.8★ (3K)YesYesSep 2026
7Dictionary.Dictionary.Free4.8★ (15K)YesYesSep 2026
8Oxford Dictionary & ThesaurusOxford Dictionary & ThesaurusFree4.6★ (29K)NoYesSep 2026

Top Picks for Synonyms Antonyms Dictionary

Dictionary.com: English Words#1

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Editor's Choice
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
Dictionary.com: English Words screenshot 2
Dictionary.com: English Words screenshot 3
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

What We Love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues
Synonyms & Antonyms Dictionary#3

Synonyms & Antonyms Dictionary by Bhavinkumar Satashiya

Include 50000+ English words
Worth Considering
🔧 Utilities
2.7(6 ratings)
Free
Synonyms & Antonyms Dictionary screenshot 1
Synonyms & Antonyms Dictionary screenshot 2
Synonyms & Antonyms Dictionary screenshot 3
Synonyms & Antonyms Dictionary screenshot 4

This app serves as a pocket resource for English synonyms and antonyms, offering over 11,200 entries with definitions and usage examples. It features a powerful search system, a favorites list, and a history of viewed words, all presented in a modern, user-friendly design.

More Synonyms Antonyms Dictionary apps to explore

4
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.6K)
free with in-app purchases
5
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(241)
paid
6
Power Thesaurus
Power Thesaurus
Power Thesaurus
Comprehensive. Fast. Reliable.
Free

Find accurate synonyms, antonyms, definitions, and related words with this comprehensive and fast thesaurus. Designed for writers, students, and professionals, it offers intuitive navigation and smart filters to help you express ideas clearly and confidently.

Ad-free PRO MembershipIntuitive navigationSmart filters
🔍 Reference
(3K)
freemium
7
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
🔍 Reference
(15K)
free with in-app purchases
8
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Oxford Dictionary & Thesaurus
Etymology & Offline Vocabulary
Free

Access a vast collection of dictionaries and thesauruses with definitions, pronunciations, and etymology. Features include offline access, advanced search options, and personalized word lists. Ideal for students, professionals, and word enthusiasts.

15 Oxford DictionariesThesaurus integrationAudio pronunciations
🔍 Reference
(29K)
free with in-app purchases
9
MyWebster28
MyWebster28
MyWebster28
Websters 1828 Dictionary
Free
🔍 Reference
(0)
10
AI English Dictionary
AI English Dictionary
AI English Dictionary
AI Dictionary & Translator app
Free
📚 Education
(0)
11
Minimal Dictionary
Minimal Dictionary
Minimal Dictionary
Offline minimal dictionary
Free
📚 Education
(0)
12
Dictionary Plus Plus
Dictionary Plus Plus
Dictionary Plus Plus
Dictionary with explanation
Free
📚 Education
(0)
13
English Dictionary - Offline
English Dictionary - Offline
English Dictionary - Offline
Offline English Dictionary
Free

A comprehensive offline English dictionary offering in-depth word definitions, usage examples, and rich language data. Explore synonyms, antonyms, pronunciations, and more without an internet connection.

Offline accessDetailed word definitionsUsage examples
🔍 Reference
(7)
free with in-app purchases
14
English Dictionary :Translator
English Dictionary :Translator
English Dictionary :Translator
Synonyms & hyponyms included
Free
🔧 Utilities
(0)
15
English Dictionary - Offline & FREE
English Dictionary - Offline & FREE
English Dictionary - Offline & FREE
by Thi Vo
Free
📚 Education
(0)
16
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary - Word Search Lex
Dictionary for normal Language
Free

Access a professional multilingual dictionary for English, Japanese, and Korean. Get detailed definitions, pronunciations, and example sentences. Save your search history and favorites for offline language learning.

Multilingual definitionsPronunciations and examplesAuto-save history
🔧 Utilities
(1)
ad-supported
17
Wiktionary English Dictionary
Wiktionary English Dictionary
Wiktionary English Dictionary
Wiki - English Dictionary
Free
📚 Education
(0)
18
MY DICTIONARY - Keyboard
MY DICTIONARY - Keyboard
MY DICTIONARY - Keyboard
The keyboard of your data
Free

This utility keyboard saves you time by storing and quickly retrieving frequently used words and phrases. Organize your saved text into categories for easy access, eliminating the need to retype repetitive information.

Saves repetitive typingStores easily forgotten wordsCategorized text snippets
🔧 Utilities
(0)
free
19
Olam Malayalam Dictionary
Olam Malayalam Dictionary
Olam Malayalam Dictionary
Offline, Fast, Open
Free
📚 Education
(0)
20
Cambrid English Dictionary
Cambrid English Dictionary
Cambrid English Dictionary
by Nghia Le Trong
Free
📚 Books
(0)

FAQ about Synonyms Antonyms Dictionary

What are the best synonyms antonyms dictionary apps for iPhone?
Dictionary.com: English Words tops our synonyms antonyms dictionary apps ranking as of August 2026, with a 4.8-star average from 328K App Store ratings, and it's free to download.
Yes — 19 of the top synonyms antonyms dictionary apps we rank are free to download, including Dictionary.com: English Words and Synonyms Antonyms Dictionary.
Dictionary.com: English Words shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 245+ synonyms antonyms dictionary apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app serves as a comprehensive English dictionary and thesaurus, offering over 2 million trusted definitions and synonyms. It aims to help users improve their English vocabulary, understanding, and writing skills through various features.
Key features include access to millions of definitions and synonyms, a 'Word of the Day' to expand vocabulary, example sentences to show word usage, audio pronunciations, grammar tips, and a search history to track learned words.

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synonyms & antonyms dictionary