foolishness

As nouns the difference between foolishness and brainlessness

is that foolishness is the state of being foolish while brainlessness is the state or condition of being brainless.

Foolishness is a related term of imbecility.

As nouns the difference between foolishness and imbecility

is that foolishness is (uncountable) the state of being foolish while imbecility is the quality of being imbecile; weakness; feebleness, especially of mind.

As nouns the difference between foolishness and canine

is that foolishness is (uncountable) the state of being foolish while canine is any member of caninae, the only living subfamily of canidae.

As an adjective canine is

of, or pertaining to, a dog or dogs.

Lunacy is a synonym of foolishness.

As nouns the difference between lunacy and foolishness

is that lunacy is (of a person or group of people) the state of being mad, insanity while foolishness is (uncountable) the state of being foolish.

Foolishness is a related term of frivolity.

As nouns the difference between foolishness and frivolity

is that foolishness is (uncountable) the state of being foolish while frivolity is frivolous act.

In uncountable terms the difference between foolishness and craziness

is that foolishness is the state of being foolish while craziness is the state of being broken down or weakened; as, the craziness of a ship, or of the limbs.

In countable terms the difference between foolishness and craziness

is that foolishness is a thing or event that is foolish, or an absurdity while craziness is the result or product of being crazy.

As nouns the difference between nonsense and foolishness

is that nonsense is letters or words, in writing or speech, that have no meaning or seem to have no meaning while foolishness is (uncountable) the state of being foolish.

As a verb nonsense

is to make nonsense of.

As an adjective nonsense

is resulting from the substitution of a nucleotide in a sense codon, causing it to become a stop codon (not coding for an amino-acid).

As nouns the difference between fallacy and foolishness

is that fallacy is deceptive or false appearance; deceitfulness; that which misleads the eye or the mind; deception while foolishness is (uncountable) the state of being foolish.

In uncountable|lang=en terms the difference between asininity and foolishness

is that asininity is (uncountable) the quality of being asinine; obstinate stupidity while foolishness is (uncountable) the state of being foolish.

In countable|lang=en terms the difference between asininity and foolishness

is that asininity is (countable) an asinine remark, behaviour, etc while foolishness is (countable) a thing or event that is foolish, or an absurdity.

As nouns the difference between asininity and foolishness

is that asininity is (uncountable) the quality of being asinine; obstinate stupidity while foolishness is (uncountable) the state of being foolish.

In uncountable|lang=en terms the difference between falsehood and foolishness

is that falsehood is (uncountable) the property of being false while foolishness is (uncountable) the state of being foolish.

In countable|lang=en terms the difference between falsehood and foolishness

is that falsehood is (countable) a false statement, especially an intentional one; a lie while foolishness is (countable) a thing or event that is foolish, or an absurdity.

As nouns the difference between falsehood and foolishness

is that falsehood is (uncountable) the property of being false while foolishness is (uncountable) the state of being foolish.