tren ‧ chant /ˈtrentʃ ə nt/ BrE AmE adjective written
[ Date: 1300-1400 ; Language: Old French ; Origin: present participle of trenchier ; ⇨ ↑ trench ]
expressed very strongly, effectively, and directly without worrying about offending people:
Stockman became one of the President’s most trenchant critics.
—trenchantly adverb