We found 26 dictionaries that define the word astonishing:

General (23 matching dictionaries)

1. astonishing: Merriam-Webster
2. astonishing: Oxford Learner's Dictionaries
3. astonishing: Collins English Dictionary
4. astonishing: Vocabulary.com
5. Astonishing, astonishing: Wordnik
6. astonishing: Cambridge Advanced Learner's Dictionary
7. astonishing: Wiktionary
8. astonishing: Infoplease Dictionary
9. Astonishing, astonishing: Dictionary.com
10. astonishing: Cambridge Essential American English Dictionary
11. Astonishing, The Astonishing: Wikipedia, the Free Encyclopedia
12. Astonishing: Online Plain Text English Dictionary
13. astonishing: Webster's Revised Unabridged, 1913 Edition
14. astonishing: Rhymezone
15. Astonishing: AllWords.com Multi-Lingual Dictionary
16. astonishing: Webster's 1828 Dictionary
17. astonishing: FreeDictionary.org
18. astonishing: Mnemonic Dictionary
19. astonishing: TheFreeDictionary.com
20. astonishing: Longman Dictionary of Contemporary English
21. astonishing: Merriam-Webster

Business (1 matching dictionary)

22. astonishing: Legal dictionary

Computing (1 matching dictionary)

23. astonishing: Encyclopedia

Slang (1 matching dictionary)

24. astonishing: Urban Dictionary

(Note: See astonish as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Causing astonishment. Similar: astounding, staggering, amazing, stupefying, surprising, impressive, breathtaking, jaw-dropping, awesome, gobsmacking, more... Opposite: ordinary, common, usual, routine Types: amazing, incredible, unbelievable, surprising, more... Phrases: Astonishing X-Men, The Astonishing, Christina the Astonishing, The Astonishing Hypothesis, Astonishing Tales, more... Colors:     electric blue,     neon green,     vibrant purple,     fiery red,     shocking pink, more... ▸ Words similar to astonishing ▸ Usage examples for astonishing ▸ Idioms related to astonishing ▸ Wikipedia articles (New!) ▸ Popular nouns described by astonishing ▸ Words that often appear near astonishing ▸ Rhymes of astonishing ▸ Invented words related to astonishing