UNSEEMLY
indecent, indecorous, unbecoming, uncomely, unseemly, untoward
(adjective) not in keeping with accepted standards of what is right or proper in polite society; “was buried with indecent haste”; “indecorous behavior”; “language unbecoming to a lady”; “unseemly to use profanity”; “moved to curb their untoward ribaldry”
Source: WordNet® 3.1
Etymology
Adjective
unseemly (comparative unseemlier, superlative unseemliest)
Inconsistent with established standards of good form or taste.
Antonyms
• seemly
Adverb
unseemly (comparative more unseemly, superlative most unseemly)
In an unseemly manner.
Source: Wiktionary
Un*seem"ly, a.
Definition: Not seemly; unbecoming; indecent.
An unseemly outbreak of temper. Hawthorne.
Un*seem"ly, adv.
Definition: In an unseemly manner.
Source: Webster’s Unabridged Dictionary 1913 Edition