1. [ adjective ] inconsistent with reason or logic or common sense
Synonyms: absurd unreasonable

"the absurd predicament of seeming to argue that virtue is highly desirable but intensely unpleasant"- Walter Lippman

Related terms: illogical
2. [ adjective ] lacking in harmony or compatibility or appropriateness

"a plan incongruous with reason" "incongruous behavior" "a joke that was incongruous with polite conversation"

Related terms: congruous ironic inappropriate inharmonious discrepant
Similar spelling:   incongruously