maximum

n

1. most, utmost, uttermost, max., Math. extremum; extremity, extreme, outer limit, limit, bound, boundary, border, frontier.

2. height, top, tip, tiptop; pinnacle, peak, crest, heights; summit, apex, vertex, apogee, Latin, ne plus ultra; acme, zenith, meridian, high noon; climax, pitch, high point, culmination; crown, cap, head.

adj

3. supreme, superlative, paramount, maximal, greatest; most, utmost, uttermost, extreme.

4. highest, uppermost, upper, topmost, top, tiptop; summital, apical, apogeal, apogean; meridian, meridional, climactic, climactical, culminating, culminant, crowning.