Synonyms of inappropriate

Adjective

1. inappropriate (vs. appropriate), unbefitting, improper, wrong, improper, malapropos

usage: not suitable for a particular occasion etc; "noise seems inappropriate at a time of sadness"; "inappropriate shoes for a walk on the beach"; "put inappropriate pressure on them"

2. inappropriate, incompatible, out or keeping(predicate), unfitting, incongruous (vs. congruous)

usage: not in keeping with what is correct or proper; "completely inappropriate behavior"

Definition and meaning of inappropriate (Dictionary)