Extremest

[ik-streem] /ɪkˈstrim/

adjective, extremer, extremest.
1.
of a character or kind farthest removed from the ordinary or average:
extreme measures.
2.
utmost or exceedingly great in degree:
extreme joy.
3.
farthest from the center or middle; outermost; endmost:
the extreme limits of a town.
4.
farthest, utmost, or very far in any direction:
an object at the extreme point of vision.
5.
exceeding the bounds of moderation:
extreme fashions.
6.
going to the utmost or very great lengths in action, habit, opinion, etc.:
an extreme conservative.
7.
last or final:
extreme hopes.
8.
Chiefly Sports. dangerous or difficult:
extreme skiing.
noun
9.
the utmost or highest degree, or a very high degree:
cautious to an extreme.
10.
one of two things as remote or different from each other as possible:
the extremes of joy and grief.
11.
the furthest or utmost length; an excessive length, beyond the ordinary or average:
extremes in dress.
12.
an extreme act, measure, condition, etc.:
the extreme of poverty.
13.
Mathematics.

14.
Logic. the subject or the predicate of the conclusion of a syllogism; either of two terms that are separated in the premises and brought together in the conclusion.
15.
Archaic. the utmost point, or extremity, of something.
/ɪkˈstriːm/
adjective
1.
being of a high or of the highest degree or intensity: extreme cold, extreme difficulty
2.
exceeding what is usual or reasonable; immoderate: extreme behaviour
3.
very strict, rigid, or severe; drastic: an extreme measure
4.
(prenominal) farthest or outermost in direction: the extreme boundary
5.
(meteorol) of, relating to, or characteristic of a continental climate
noun
6.
the highest or furthest degree (often in the phrases in the extreme, go to extremes)
7.
(often pl) either of the two limits or ends of a scale or range of possibilities: extremes of temperature
8.
(maths)

9.
(logic) the subject or predicate of the conclusion of a syllogism
adj.

early 15c., from Old French extreme (13c.), from Latin extremus “outermost, utmost, farthest, last,” superlative of exterus (see exterior).

In English as in Latin, not always felt as a superlative, hence more extreme, most extreme (which were condemned by Johnson). The noun is first recorded 1540s, originally of the end of life, cf. Latin in extremis. Extreme unction preserves the sense of “last, latest” (15c.). Extremes “opposite ends of anything” is from 1550s.
extreme
(ĭk-strēm’)