Foolishness

/ˈfuːlɪʃnəs/

Meaning & Definition

noun
Lack of good sense or judgment; the quality of being foolish.
His foolishness led him to invest all his savings in a dubious scheme.
An act or instance of being foolish.
Jumping off the roof was a moment of pure foolishness.
A lack of wisdom or prudence.
She regretted her foolishness in trusting someone she barely knew.

Etymology

Middle English, from the word 'fool' + '-ish' + '-ness'

Common Phrases and Expressions

foolish behavior
Actions that lack wisdom or sound judgment.
foolish decisions
Choices made without considering the consequences.
foolish pride
An unreasonable sense of pride that may lead to downfall.

Related Words

fool
A person lacking in judgment or sense.
foolhardy
Recklessly bold or rash in behavior.

Slang Meanings

Tomfoolery
They were just engaging in some good old tomfoolery at the reunion.
Goofiness
His goofiness during class made it hard for anyone to take him seriously.
Nonsense
What a load of nonsense to think that would actually work!