lacking knowledge gained by study often in a particular field; "is unstudied in Latin as he is in may other matters"
not by design or artifice; unforced and impromptu; "an air of unstudied spontaneous utterance is apt to be painstakingly achieved"; "simple unstudied charm"
perfected or made shiny and smooth; "his polished prose"; "in a freshly ironed dress and polished shoes"; "freshly polished silver"
showing a high degree of refinement and the assurance that comes from wide social experience; "his polished manner"; "maintained an urbane tone in his letters"
not changeable or subject to change; "a fixed and unchangeable part of the germ plasm"-Ashley Montagu; "the unchangeable seasons"; "one of the unchangeable facts of life"