aberrant

markedly different from an accepted norm

See Aberr.] 1. Wandering; straying from the right way.

Latin 'aberrare' - to wander off

“But, for him to declare them the garbled and unauthentic utterances of an aberrant mind, and to make public such statement in his own name, would save the situation, possibly the Rincón honor, even though it stultify his own.”

— Charles Francis Stocking, Carmen Ariza

“Today, they preserve some features of elasmobranch life in Paleaozoic times, though in other respects they are aberrant.”