in·ep·ti·tude \ə̇ˈneptəˌtüd, -ptə.ˌtyüd\noun (-s) Etymology: Latin ineptitudo, from ineptus inept + -i- + -tudo -tude 1.: unfitness, unsuitableness < ineptitude of a comparison > < ineptitude that ought to have kept him out of business — Van Wyck Brooks > 2.: a foolish action or utterance : absurdity