foolish

As adjectives the difference between foolish and boobish

is that foolish is lacking good sense or judgement; unwise while boobish is like a boob; foolish, silly.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a noun lolcow is

(internet|slang|derogatory) a person whose eccentric or foolish behaviour can be exploited to amuse onlookers.

As adjectives the difference between foolish and vaniloquent

is that foolish is lacking good sense or judgement; unwise while vaniloquent is talking in a vain or foolish way.

As adjectives the difference between foolish and dunderheaded

is that foolish is lacking good sense or judgement; unwise while dunderheaded is stupid, foolish.

As adjectives the difference between foolish and duncelike

is that foolish is lacking good sense or judgement; unwise while duncelike is resembling a dunce or some aspect of one; foolish, stupid.

As adjectives the difference between foolish and lunkish

is that foolish is lacking good sense or judgement; unwise while lunkish is like a lunk; stupid, foolish.

As adjectives the difference between foolish and clottish

is that foolish is lacking good sense or judgement; unwise while clottish is like a clot; foolish, silly.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a noun jackassery is

the foolish or obnoxious behaviour of a jackass.

As adjectives the difference between foolish and oxlike

is that foolish is lacking good sense or judgement; unwise while oxlike is resembling an ox or some aspect of one: strong, foolish, etc.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a noun spacker is

(british|slang) a spack; a clumsy or foolish person.