Opposite for logic for belief, action

Opposite for a cause, explanation, or justification for an action or event

Opposite for the reason, whether conscious or unconscious, for a certain course of action

Opposite for a reason, explanation, or excuse which provides convincing, morally acceptable support for behavior or for a belief or occurrence

Opposite for the quality of being justifiable by reason

Opposite for a reason or incentive for acting or behaving in a particular way

Opposite for the thought processes that have been established as leading to valid solutions to problems

Opposite for the quality or state of being rational

Opposite for the character or fundamental values of a person, people, culture, or movement

Opposite for the quality of having experience, knowledge, and good judgement; the quality of being wise

Opposite for the justification for or reasoning behind something

Opposite for a foundation or starting point for further work

Opposite for as a scientific term of art, see the attached quotation

Opposite for something that motivates, rouses, or encourages

Opposite for not frequented