I. adjective
1.
very great
the project demanded extreme secrecy
Synonyms: utmost, uttermost
2.
Synonyms: ardent 2, intense
Related Word: deep, moving
3.
departing sharply from the traditional or usual
extreme political views
Synonyms: extremist, fanatic, rabid, radical, revolutional, revolutionary, revolutionist, ultra, ultraist; compare outlandish 3
Related Word: excessive, immoderate; desperate, drastic; extravagant, unreasonable; violent, wild
Contrasted words: conservative, moderate, restrained; reasonable, sensible
4.
Synonyms: excessive 1, dizzy, exorbitant, extravagant, immoderate, inordinate, towering, unconscionable, undue, unmeasurable
Related Word: intolerable, unwarranted
5.
most distant from a center
the extreme edge of the city
Synonyms: farthest, furthermost, furthest, outermost, outmost, remotest, utmost, uttermost
II. noun
1.
an extreme state or condition
an extreme of poverty
Synonyms: extremity
Related Word: excess, inordinancy
2.
something situated at or marking one end or the other of a range
extremes of heat and cold
Synonyms: extremity, limit
Related Word: climax, consummation, culmination; ceiling, crest, crown, height; peak, pinnacle, summit, top; maximum, utmost, uttermost