Definition of foolishness:
lyssa, flakiness, foolery, daftness, fury, rabies, insaneness, folly, indulgence, lunacy, craziness, rabidity, tomfoolery, rage, imbecility, hydrophobia, insanity, betise, ability, stupidity, rabidness, indiscretion, senselessness, imprudence, incapacity, weakness, madness, fatuity, zaniness, unwiseness.
absurdity (part of speech: noun)
- ignorance (part of speech: noun)
- ridiculousness (part of speech: noun)
- foolishness (part of speech: noun)
- "The Reclaimers", Margaret Hill McCarter.
- "A Daughter of the Land", Gene Stratton-Porter.
- "Annie Kilburn A Novel", W. D. Howells.