disbecome means to misbecome; to fail to suit; to be unfitting. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “disbecome” is a great word
DISBECOME — [Verb] To be unbefitting or unsuitable for someone or something. Formed within English by derivation from the prefix dis- (expressing negation or reversal) and the verb become (to be suitable or fitting). First attested in the period 1632–39. Unlike "misbecome," which suggests a jarring lapse in grace, or "unbecome," which implies the active undoing of a former suitability, "disbecome" denotes a quiet, passive state of stark incongruity. It is the heavy crown on a usurper’s brow, the gaudy flourish in a solemn speech, the borrowed phrase that disfigures an honest sentence—a spectral remainder of a suitability that was never truly there to be lost.
Etymology
From dis- + become.
verb
- To misbecome; to fail to suit; to be unfitting.“be careful
That your compassion of my age, nor his,
Move you to any thing that may disbecome
The place on which you sit”