ad hominem

Meanings

1. Ellipsis of argumentum ad hominem: A fallacious objection to an argument or factual claim by appealing to a characteristic or belief of the person making the argument or claim, rather than by addressing the substance of the argument or producing evidence against the claim; an attempt to argue against an opponent's idea by discrediting the opponent themselves.
2. A personal attack.

1. Of or relating to this kind of fallacious objection.

1. In an ad hominem manner.

Etymology

Ellipsis of the Latin expression argumentum ad hominem (“argument at the person”). It can also mean attacking the messenger.