Unconscionable
来自Big Physics
mid 16th century: from un-1 ‘not’ + obsolete conscionable, from conscience (interpreted as a plural) + -able.
wiktionary
un- + conscionable
etymonline
unconscionable (adj.)
1560s, "showing no regard for conscience," from un- (1) + now rare conscionable "conscientious." Related: Unconscionably.