Conservative  —adj. 1 a averse to rapid change. B (of views, taste, etc.) Moderate, avoiding extremes. 2 (of an estimate etc.) Purposely low. 3 (usu. Conservative) of conservatives or the conservative party. 4 tending to conserve. —n. 1 conservative person. 2 (usu. Conservative) supporter or member of the conservative party.  conservatism n. [latin: related to *conserve]