A REPUGNANTIBUS Argument

A repugnantibus, lat. repugnans “contradictory; resistant, contrary, incompatible”.
Repugnant meaning “disgusting” is also derived from this source, but the argument a repugnantibus is not the “argument of disgust”, see. Emotions.
The meaning of Latin repugnans in a repugnantibus is closer to “revolting, unacceptable”, the second meaning of Eng. repugnant.

1. In Cicero’s Topica, the argument a repugnantibus is based on logically “contradictory” things (Cicero, Top, XII, 53; p. 420).
In her translation of Boethius, Stump translates a repugnantibus as “from incompatible [things]” (Boethius Top. p. 64), see Contradiction; Opposites.

This logical argument a repugnantibus is based on contradiction, whereas the argument ad incommodum involves consequences that are subjectively unacceptable to the speaker, either from a material or a moral point of view, see Pragmatic argument.

2. Bossuet defines the argument a repugnantibus as a contradiction between action and speech: “your conduct does not correspond to your speech” ([1677], p. 140), which corresponds to the third type of ad hominem argument, see Ad hominem.