foolish

Witless is a related term of foolish.

As adjectives the difference between witless and foolish

is that witless is destitute of wit or understanding; wanting thought; hence, indiscreet; not under the guidance of judgment while foolish is lacking good sense or judgement; unwise.

Foolish is a synonym of contemptible.

As adjectives the difference between foolish and contemptible

is that foolish is lacking good sense or judgement; unwise while contemptible is deserving contempt.

As adjectives the difference between innocent and foolish

is that innocent is free from guilt, sin, or immorality while foolish is lacking good sense or judgement; unwise.

As a noun innocent

is those who are innocent; young children.

As adjectives the difference between commonsense and foolish

is that commonsense is exhibiting or using common sense while foolish is lacking good sense or judgement; unwise.

As adjectives the difference between foolish and cowardly

is that foolish is lacking good sense or judgement; unwise while cowardly is showing cowardice; lacking in courage; basely or weakly fearful.

As an adverb cowardly is

in the manner of a coward.

As adjectives the difference between ludicrous and foolish

is that ludicrous is idiotic or unthinkable, often to the point of being funny while foolish is lacking good sense or judgement; unwise.

Foolish is a related term of wild.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a proper noun wild is

for a wild person, or for someone living in uncultivated land.

As adjectives the difference between foolish and reckless

is that foolish is lacking good sense or judgement; unwise while reckless is careless or heedless; headstrong or rash.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a proper noun goofy is

a character: a slow-witted anthropomorphic dog with a goofy laugh.

Weak is a related term of foolish.

As adjectives the difference between weak and foolish

is that weak is lacking in force (usually strength) or ability while foolish is lacking good sense or judgement; unwise.