Source : WordNet®

unpretentious
     adj 1: lacking pretension or affectation; "an unpretentious country
            church"; "her quiet unpretentious demeanor" [ant: {pretentious}]
     2: not ostentatious; "his unostentatious office";
        "unostentatious elegance" [syn: {unostentatious}, {unpretending}]
        [ant: {ostentatious}]
     3: exhibiting restrained good taste; "the room is pleasant and
        understated" [syn: {understated}, {unostentatious}]