Merriam-Webster Collegiate Dictionary - slight

 I. adjective  Etymology: Middle English, smooth, ~, probably from Old English sliht- (in eorth-slihtes level with the ground); akin to Old High German sleht smooth, slihhan to glide — more at slick  Date: 14th century  1.  a. having a slim or delicate build ; not stout or massive in body  b. lacking in strength or substance ; flimsy, frail  c. deficient in weight, solidity, or importance ; trivial a ~ movie  2. small of its kind or in amount a ~ chance a ~ odor of gas  Synonyms: see thin  • ~ly adverb  • ~ness noun  II. transitive verb  Date: 1586  1. to treat as ~ or unimportant ; make light of  2. to treat with disdain or indifference ~ a guest  3. to perform or attend to carelessly and inadequately don't ~ your work  Synonyms: see neglect  III. noun  Date: 1701  1. an act or an instance of ~ing  2. an instance of being ~ed ; a humiliating discourtesy