We found 24 dictionaries that define the word foolishness:

General (20 matching dictionaries)

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

Business (1 matching dictionary)

19. foolishness: Legal dictionary

Computing (1 matching dictionary)

20. foolishness: Encyclopedia

Miscellaneous (1 matching dictionary)

21. foolishness: Idioms

Slang (1 matching dictionary)

22. foolishness: Urban Dictionary

Definitions from Wiktionary (foolishness) ▸ noun:  (uncountable) The state of being foolish. ▸ noun:  (countable) A thing or event that is foolish, or an absurdity. Similar: imbecility, stupidity, craziness, folly, unwiseness, betise, foolhood, tomfoolishness, fool-heartedness, foolability, more... Opposite: wisdom, sagacity, intelligence Types: naivete, gullibility, stupidity, folly, idiot, more... Phrases: Foolishness for Christ, utter foolishness, act of foolishness, silly foolishness, state of foolishness, more... Adjectives: such, own, mere, utter, greeks, great, sheer, pure, damn, much, human ▸ Words similar to foolishness ▸ Usage examples for foolishness ▸ Idioms related to foolishness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing foolishness ▸ Words that often appear near foolishness ▸ Rhymes of foolishness ▸ Invented words related to foolishness