Small; little; narrow; contracted: as, a race of diminutive men; a diminutive house.Having the power of diminishing or lessening; tending to diminish, decrease, or abridge.In grammar, expressing something small or little: as, a diminutive word; the diminutive suffixes ‘-kin.’ ‘-let,’ ‘-ling,’ etc. See II., 3.n. I. Anything very small as to size, importance, value, etc.: as, a dainty diminutiven. In old medicine, something that dimishes or abates.n. In grammar, a word formed from another word, usually an appellative or generic term, to express a little thing of the kind: as, in Latin,lapillus, a little stone, from lapis, a stone; cellula, a little cell, from cella, a cell; in French, maisonnette, a little house, from maison, a house; in English, manikin, a little man, from man; rivulet, which a double diminutive, being from Latin rivulus, a diminutive of rivus, a river, with the English diminutive of rivus, a river, with the English diminutive termination -et.