Utmost

• POS: Adjective, Noun
• HYPHEN: ut=most

CIDE DICTIONARY

Utmost, a. [OE. utmeste, utemest, AS. temest, a superlative fr. te out. . See Out, and cf. Aftermost, Outmost, Uttermost.].

•  Situated at the farthest point or extremity; farthest out; most distant; extreme; as, the utmost limits of the land; the utmost extent of human knowledge.  Spenser.  [1913 Webster]

  "We coasted within two leagues of Antibes, which is the utmost town in France."  [1913 Webster]

  "Betwixt two thieves I spend my utmost breath."  [1913 Webster]
•  Being in the greatest or highest degree, quantity, number, or the like; greatest; as, the utmost assiduity; the utmost harmony; the utmost misery or happiness.  [1913 Webster]

  "He shall answer . . . to his utmost peril."  [1913 Webster]

  "Six or seven thousand is their utmost power."  [1913 Webster]

Utmost, n. 

 The most that can be; the farthest limit; the greatest power, degree, or effort; as, he has done his utmost; try your utmost.  [1913 Webster]
"We have tried the utmost of our friends."  [1913 Webster]

OXFORD DICTIONARY

Utmost, adj. & n. furthest, extreme, or greatest (the utmost limits; showed the utmost reluctance).
--n. (prec. by the) the utmost point or degree etc.

Idiom

do one's utmost do all that one can.

Etymology

OE ut(e)mest (as OUT, -MOST)

THESAURUS

Utmost

acme, all, apex, apogee, at the height, at the limit, best, brow, cap, ceiling, climax, cloud nine, crest, crown, culmen, culmination, edge, end, extreme, extreme limit, extremity, far out, farthest, first-class, first-rate, furthermost, furthest, greatest, heaven, heavens, height, high noon, highest, highest degree, highest pitch, highest point, limit, maximal, maximum, meridian, most, mountaintop, ne plus ultra, no place higher, noon, nth degree, outermost, outmost, outside, peak, pinnacle, pitch, point, pole, radical, remotest, ridge, seventh heaven, sky, spire, summit, superlative, supreme, the whole, tip, tip-top, too much, top, top-notch, topmost, ultra, ultra-ultra, upmost, upper extremity, uppermost, utmost extent, uttermost, vertex, very top, way out, zenith

ROGET THESAURUS

Utmost

Superiority

N superiority, majority, greatness, advantage, pull, preponderance, preponderation, vantage ground, prevalence, partiality, personal superiority, nobility, Triton among the minnows, primus inter pares, nulli secundus, captain, crackajack, supremacy, preeminence, lead, maximum, record, trikumia, climax, culmination, transcendence, ne plus ultra, lion's share, Benjamin's mess, excess, surplus, (redundancy), superior, greater, major, higher, exceeding, great, distinguished, ultra, vaulting, more than a match for, supreme, greatest, utmost, paramount, preeminent, foremost, crowning, first-rate, unrivaled peerless, matchless, none such, second to none, sans pareil, unparagoned, unparalleled, unequalled, unapproached, unsurpassed, superlative, inimitable facile princeps, incomparable, sovereign, without parallel, nulli secundus, ne plus ultra, beyond compare, beyond comparison, culminating, transcendent, transcendental, plus royaliste que le Roi, more catholic than the Pope increased, enlarged, beyond, more, over, over the mark, above the mark, above par, upwards of, in advance of, over and above, at the top of the scale, at its height, eminently, egregiously, preeminently, surpassing, prominently, superlatively, supremely, above all, of all things, the most, to crown all, kat exochin, par excellence, principally, especially, particularly, peculiarly, a fortiori, even, yea, still more, I shall not look upon his like again, deos fortioribus addesse.