To be impenitent is to have no remorse or regrets. Your brother was impenitent when he ate the cupcakes that you had baked for your club fundraiser. Not nice.

The word repent is hiding in impenitent. When you repent, you regret or feel sorry about something you've done. Impenitent and repent share the Latin root penitire meaning "to regret," but add im- meaning "not" for impenitent and you've got the opposite: "to not regret or repent." A criminal who is impenitent about feels no shame about what he's done.

Definitions of impenitent

adj not penitent or remorseful

unremorseful, unrepentant
used of persons or their behavior; feeling no shame
unregenerate, unregenerated
not reformed morally or spiritually
penitent, repentant
feeling or expressing remorse for misdeeds
feeling shame or guilt or embarrassment or remorse
bad, regretful, sorry
feeling or expressing regret or sorrow or a sense of loss over something done or undone
contrite, remorseful, rueful, ruthful
feeling or expressing pain or sorrow for sins or offenses
penitential, penitentiary
showing or constituting penance
show more antonyms...

adj impervious to moral persuasion

unregenerate, unregenerated
not reformed morally or spiritually

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