adjective, un·seem·li·er, un·seem·li·est.
- not seemly; not in keeping with established standards of taste or proper form; unbecoming or indecorous in appearance, speech, conduct, etc.: an unseemly act; unseemly behavior.
- inappropriate for time or place: an unseemly hour.
- in an unseemly manner.
- not in good style or taste; unbecoming
- obsolete unattractive
- rare in an unseemly manner
adj.early 14c., “unfitting, indecent,” from un- (1) “not” + seemly. Cf. Old Norse usoemiligr.