deviational

Of, pertaining to, involving or inclining toward some form of deviation.

Adjective

  1. Of, pertaining to, involving or inclining toward some form of deviation.
    • The verbs which diner in the perfect and the supine may be called deviational, as in a marked way deviating (de, from, and via, a way) from the ordinary forms, and those that are without certain parts may be termed...

Origin

From deviation + -al.