Synonyms for Ultimate:

adj.

best, greatest (adjective)
supreme, highest, utmost, transcendent, topmost, maximum, unsurpassable.
extreme (adjective)
uttermost, outmost, extreme.
final (adjective)
terminal, final, latest.
last, final (adjective)
farthermost, furthermost, latest, terminal, furthest, latter, extreme, farthest, eventual.
maximal (adjective)
maximal.
perfect (adjective)
faultless, complete, impeccable, consummate, acme, perfect, Taintless, letter-perfect, flawless, unspoiled.

adv.

farthest (adverb)
farthest.

n.

desperate, grave, rigorous, severe, profound, serious, awful, dire, acute. intrinsic, natural, rudimentary, terminal, raw, start, inherent, latter, core. limited, deciding, maximum, high, at long last, topmost, uttermost, top, maximal, utmost. transcendent, conspicuous, like nothing on earth, couldn't be better/worse/nicer etc., better, big, unadulterated, unsurpassable, with/without distinction, of your life, unbelievable, extreme, not...anything better/worse. edge, furthermost, outermost, outmost, furthest, farthermost. ne plus ultra, outside. ultimate (noun)
farthest, elemental, crowning, supreme, eventual, final, last-ditch, highest, last, net, simple.

Other synonyms:

extreme, principal, maximal, outmost, farthermost, unsurpassable, furthermost, unbelievable. latter, conspicuous, basic, uttermost, elementary, maximum, terminal, outermost, outside, transcendent, underlying. primitive, topmost, fundamental. essential. top. farthest
farthest, furthest.
greatest
utmost.

Usage examples for ultimate

  1. " Witness: We have no ultimate ends. – A History of Trade Unionism in the United States by Selig Perlman
  2. It knows nothing about its ultimate nature. – Natural Law in the Spiritual World by Henry Drummond