extreme (suomeksi)

äärimmäinen (a: of a place, the most remote, farthest or outermost / in the greatest or highest degree; intense / excessive, or far beyond the norm / drastic, or of great severity / archaic: ultimate, final or last)
törkeä (a: excessive, or far beyond the norm / drastic, or of great severity)
liiallinen (a: excessive, or far beyond the norm)
extreme (a: of sports, difficult or dangerous; performed in a hazardous environment)
ääripiste (s: greatest or utmost point, degree or condition)
ääriarvo (s: each of the things at opposite ends of a range or scale)
äärimmäisyys (s: drastic expedient)
ääri-ilmiö (s: drastic expedient)