stultus (foolish, from want of practical wisdom, μωρός; opposed to prudens, of persons or things): fatuus (silly; from want of judgement): stolidus (from want of reasonable moderation; from brutality): demens (that has lost his mind; who acts senselessly): ineptus (without good sense): insulsus (absurd): mente captus: vesanus (insane, mad): ridiculus (amusing, like a fool): mirus (strange). A foolish affair or thing, mira res; mirum negotium: a foolish fellow (i. e., droll), ridiculum caput. I consider it very foolish to, etc., summae dementiae esse judico, with following infinitive.