1. (adj.)utmost of the greatest or highest degree, quantity, etc.; greatest: of the utmost importance.
2. utmost being at the farthest point or extremity; farthest.
3. (n.)utmost the greatest degree or amount: providing the utmost in comfort.
4. utmost the most or best of one's abilities, powers, etc.: He did his utmost to win.
5. utmost the extremelimit or extent: patience taxed to the utmost.
Etymology: (bef. 900; ME utmest, OE ūtemest. See out, -most)
Definition of 'utmost'
Princeton's WordNet
1. (adj)utmost, uttermost, maximum, level best the greatest possibledegree "he tried his utmost"
2. (adj)extreme, utmost(a), uttermost(a) of the greatest possibledegree or extent or intensity "extreme cold"; "extreme caution"; "extreme pleasure"; "utmost contempt"; "to the utmost degree"; "in the uttermost distress"
3. (adj)last, utmost highest in extent or degree "to the last measure of human endurance"; "whether they were accomplices in the last degree or a lesser one was...to be determined individually"
4. (adj)farthermost, farthest, furthermost, furthest, utmost, uttermost (comparatives of `far') most remote in space or time or order "had traveled to the farthest frontier"; "don't go beyond the farthermost (or furthermost) tree"; "explored the furthest reaches of space"; "the utmost tip of the peninsula"
Definition of 'utmost'
Webster Dictionary
1. (adj)utmost situated at the farthest point or extremity; farthest out; most distant; extreme; as, the utmost limits of the land; the utmostextent of humanknowledge
2. (adj)utmost being in the greatest or highest degree, quantity, number, or the like; greatest; as, the utmost assiduity; the utmost harmony; the utmostmisery or happiness
3. (noun)utmost the most that can be; the farthest limit; the greatest power, degree, or effort; as, he has done his utmost; try your utmost
Definitions of utmost 
Afrikaans: uiteinde
Arabic: أقْصى، أعْظَم
Bulgarian: най-отдалечен
Brazilian: extremo
Czech: nejzazší
German: äußerst
Danish: yderst
Greek: έσχατος, ο πιο απομακρυσμ
Spanish: extremo
Estonian: kaugeim
Farsi: دورترین
Finnish: äärimmäinen
French: le pluséloigné
Hebrew: קִיצוֹנִי
Hindi: अधिकतम, परिमाण, पराकाष्ठा
Croatian: najdalji, krajnji
Hungarian: legtávolabbi
Indonesian: paling jauh
Icelandic: ystur, fjarlægastur
Italian: estremo
Japanese: 最も遠い
Korean: 가장 먼
Lithuanian: tolimiausias
Latvian: galējais; visattālākais
Malay: sangat
Dutch: uiterst
Norwegian: ytterste
Polish: najdalszy
Persian: دورترین
Pashto: زښت ډېر، ډېر لرې، بې شمېر
Portuguese: extremo
Romanian: cel maiîndepărtat
Russian: самый отдалённый
Slovak: krajný, hraničný
Slovenian: najbolj oddaljen
Serbian: krajnji
Swedish: ytterst
Thai: ไกลที่สุด
Turkish: en uzak, en nihayette
Taiwanese: 最遠的
Ukrainian: найвіддаленіший
Urdu: نہايت
Vietnamese: vô cùng
Chinese: 最远的
