Subtle

adj. (subtler, subtlest) 1 elusive, mysterious; hard to grasp. 2 (of scent, colour, etc.) faint, delicate. 3 a perceptive (subtle intellect). b ingeni-ous (subtle device). -J subtlety n. (pl. -les). subtly adv. [Latin subtilis] subtotal n. total of one part of a group of figures to be added.