triffidian adjective1 •Resembling or relating to triffids ("a fictional plant able to move around and kill people with a poisonous stinger").It was assumed, consequently, that their characteristic of suddenly losing their immobility and rattling a rapid tattoo against the main stem was some strange form of triffidian amatory exuberance. — 1951 formsmore triffidian · most triffidian
