We found 27 dictionaries that define the word sickening:

General (23 matching dictionaries)

1. sickening: Longman Dictionary of Contemporary English
2. sickening: Merriam-Webster
3. sickening: Oxford Learner's Dictionaries
4. sickening: American Heritage Dictionary of the English Language
5. sickening: Collins English Dictionary
6. sickening: Vocabulary.com
7. Sickening, sickening: Wordnik
8. sickening: Cambridge Advanced Learner's Dictionary
9. sickening: Wiktionary
10. sickening: Webster's New World College Dictionary, 4th Ed.
11. sickening: The Wordsmyth English Dictionary-Thesaurus
12. sickening: Infoplease Dictionary
13. sickening: Dictionary.com
14. sickening: Cambridge Essential American English Dictionary
15. Sickening: Online Plain Text English Dictionary
16. sickening: Webster's Revised Unabridged, 1913 Edition
17. sickening: Rhymezone
18. Sickening: AllWords.com Multi-Lingual Dictionary
19. sickening: FreeDictionary.org
20. sickening: Mnemonic Dictionary
21. sickening: TheFreeDictionary.com

Business (1 matching dictionary)

22. sickening: Legal dictionary

Computing (1 matching dictionary)

23. sickening: Encyclopedia

Medicine (1 matching dictionary)

24. sickening: Merriam-Webster Medical Dictionary

Slang (1 matching dictionary)

25. sickening: Urban Dictionary

(Note: See sicken as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Causing sickness or disgust. ▸ adjective:  (LGBTQ slang) Amazing, fantastic. ▸ noun:  The act of making somebody sick. Similar: nauseating, nauseous, vile, noisome, loathsome, offensive, unwholesome, disgusting, foul, stomach-churning, more... Opposite: appetizing, palatable, savory Phrases: sickening for, a sickening dislike, sickening smell, opposite of sickening, more... Adjectives: little, sudden, more, peculiar, same, fair, gradual, such, certain, slight, half Colors:     lime green,     neon yellow,     vomit green,     sallow beige,     pallid white, more... ▸ Words similar to sickening ▸ Usage examples for sickening ▸ Idioms related to sickening ▸ Wikipedia articles (New!) ▸ Popular adjectives describing sickening ▸ Popular nouns described by sickening ▸ Words that often appear near sickening ▸ Rhymes of sickening ▸ Invented words related to sickening