The Collaborative International Dictionary
Unbeseeming
Unbeseeming \Un`be*seem"ing\, a. [Pref. un- not + beseeming.] Unbecoming; not befitting. -- Un`be*seem"ing*ly, adv. -- Un`be*seem"ing*ness, n.
Douglas Harper's Etymology Dictionary
Wiktionary
unbeseeming
vb. (present participle of unbeseem English)