extreme

[1]	extreme point , extremum
[2]	extremes , limit(s) , bounds , utmost , maximum , (Colloq) swing
[3]	go to extremes , limit(s) , bounds , maximum , acme , zenith , pinnacle , summit , height , apex , apogee , peak , extremity , depth , nadir
[4]	in the extreme , extremely , very , exceptionally , exceedingly , extraordinarily , unusually

adj.

[1]	unusual , uncommon , exceptional , outstanding , notable , noteworthy , abnormal , different , extraordinary , remarkable
[2]	immoderate , excessive , severe , intense , acute , maximum , worst
[3]	outermost , utmost , uttermost , endmost , farthest , ultimate , utmost , uttermost , remotest , last , far-off , far-away , distant , very
[4]	rigid , stern , severe , strict , conservative , hidebound , stiff , stringent , restrictive , constrictive , uncompromising , Draconian , harsh , drastic
[5]	unconventional , radical , outrageous , wild , weird , bizarre , queer , outrageous , offbeat , exotic , eccentric , different , (Slang) far-out , way-out , (US/Canadian) kooky
[6]	beyond the pale/limits/bounds , extravagant , inordinate , excessive , disproportionate , outrageous