least(a)
n.something that is of no importance"it is the least I can do"; " that is the least of my concerns"
adj.the superlative of `little' that can be used with mass nouns and is usually preceded by `the'; a quantifier meaning smallest in amount or extent or degree"didn't care the least bit"; " he has the least talent of anyone"
adv.used to form the superlative"The garter snake is the least dangerous snake"
同义词：to the lowest degree