- I(Roget's IV) modif.II(Roget's Thesaurus II) I adjective 1. Of the greatest possible degree, quality, or intensity: extreme, supreme, transcendent, ultimate, unsurpassable, utmost. See BETTER, BIG. 2. Greatest in quantity or highest in degree that has been or can be attained: maximal, maximum, top, topmost, ultimate, utmost. See HIGH, LIMITED. 3. Most distant or remote, as from a center: extreme, farthermost, farthest, furthermost, furthest, outermost, outmost, ultimate, utmost. See BIG, EDGE. II noun The greatest quantity or highest degree attainable: maximum, outside, top, ultimate, utmost. Idiom: ne plus ultra. See HIGH, LIMITED.
English dictionary for students. 2013.