Subtle

sut′l ( B. Sub′til ), adj. subtile in a figurative sense: acute, quick to discern or discriminate: insinuating, sly, artful: cunningly devised, ingenious.— ns. Subt′lene , Subt′lety , quality of being subtle: artfulne : shrewdne : extreme acutene .— adj. Subt′le-wit′ted , sharp-witted.— adv. Subt′ly ( B. Sub′tilly ), ingeniously, cleverly: artfully, deceitfully. [Contr. of subtile .]