Mad, deranged; deficient in understanding or intellect. Also: dazed, confused. Now English regional (northern and north-east midlands).

That is an idiot; profoundly mentally and intellectually disabled; exceedingly stupid.

= idiotic, adj.

= idiotic, adj.

= idiotic, adj.

Characteristic of a person regarded as an idiot; extremely stupid, foolish, or irrational. Formerly also: †designating a person severely…

Of an action, idea, speech, etc.: showing or characterized by mental deficiency or lack of intelligence; stupid, foolish, idiotic.

Silly, foolish, idiotic.

Characterized by extreme stupidity or foolishness; idiotic, moronic.

Extremely stupid or foolish; idiotic, moronic. Cf. cretin, n. 2.

Characteristic of a person regarded as an imbecile; extremely stupid or foolish; idiotic.

Of a person: stupid, ignorant, dull; foolish, inept.

Esp. of a person: stupid, foolish, idiotic; daft.

Idiotic, stupid, inane.

Having low intelligence; idiotic, stupid. Now rare.

Stupid, idiotic. Cf. fuckwit, adj.

Foolish, idiotic; half-witted, daft. Esp. of persons.

Stupid, idiotic.

Esp. of a person: stupid, foolish, idiotic.