unsuit verb 3noun 2forms 3 verb3 •To cause to fail to suit; to make (something or someone) unfit.It is a sunny, cheerful tree, full of glorious vitality, and always beautiful, though it may have faults that unsuit it for some places. — 1881 •To take off a suit.Drooble also unsuits, more slowly than his Captain, and follows him as he stomps impatiently towards the bridge. — 2009 •To dismiss the legal suit of (a plaintiff) noun2 •A swimsuit made of cloth that allows through UVB rays so that the wearer can tan through the suit.unsuits, knitted or crocheted, of man-made fibres, children's wear — 1971 •A legal suit that is dismissed by the judge.The years around 1669-1671 show a better than average share of withdrawals and unsuits. — 1978 formsunsuited · unsuiting · unsuits