Reverse Dictionary: LIGHT (wanton, unchaste, frivolous)

NOUNS, PERSON
1611 GILL-FLIRT a thoughtless, giddy girl; a flirt, a tease, a wanton; a light or loose woman; a prostitute
1881 JACK-STRAW a light fellow; a coxcomb (Bk.)
1893 DAFFY a light woman → US sl.