foolish

Undesigning is a related term of foolish.

As adjectives the difference between undesigning and foolish

is that undesigning is having no artful, ulterior, or fraudulent purpose; sincere; artless; simple while foolish is lacking good sense or judgement; unwise.

Wrong is a related term of foolish.

As adjectives the difference between wrong and foolish

is that wrong is incorrect or untrue while foolish is lacking good sense or judgement; unwise.

As an adverb wrong

is (informal) in a way that isn't right; done incorrectly; wrongly.

As a noun wrong

is something that is immoral or not good.

As a verb wrong

is to treat unjustly; to injure or harm.

Unmixed is a related term of foolish.

As adjectives the difference between unmixed and foolish

is that unmixed is pure, not mixed or combined while foolish is lacking good sense or judgement; unwise.

Uncombined is a related term of foolish.

As adjectives the difference between uncombined and foolish

is that uncombined is not combined with another while foolish is lacking good sense or judgement; unwise.

Uncompounded is a related term of foolish.

As adjectives the difference between uncompounded and foolish

is that uncompounded is not compounded while foolish is lacking good sense or judgement; unwise.

Unmingled is a related term of foolish.

As adjectives the difference between unmingled and foolish

is that unmingled is not mingled while foolish is lacking good sense or judgement; unwise.

As adjectives the difference between foolish and incautious

is that foolish is lacking good sense or judgement; unwise while incautious is careless, reckless, not exercising proper caution.

Foolish is a related term of inconsistent.

As adjectives the difference between foolish and inconsistent

is that foolish is lacking good sense or judgement; unwise while inconsistent is not consistent.

As adjectives the difference between foolish and credulous

is that foolish is lacking good sense or judgement; unwise while credulous is excessively ready to believe things; gullible.

Foolish is a related term of superficial.

As adjectives the difference between foolish and superficial

is that foolish is lacking good sense or judgement; unwise while superficial is shallow, lacking substance.

As a noun superficial is

(chiefly in plural) a surface detail.