1) an extremely violent event of great importance as in a war (apocalypse)
2) (of unpleasant experiences) seriously; extremely (badly)
3) extremely cruel (barbarous)
4) (of a person's behaviour) extremely cruel (bestial)
5) extremely troubled or upset (distraught)
6) extremely happy, pleased, proud etc (elated)
7) extremely busy with and interested (in an activity, book etc) (engrossed)
8) the act, condition, of being extravagant; something that is extremely expensive (extravagance)
9) extremely worried, anxious, full of pain; very busy, excited (frantic)
10) a period of extremely cold weather; (to cause a substance) to become solid, especially as ice, because of extreme cold (freeze)
much; by much
considerably
in or to a large degree
very, well
behaviour caused by, suffering from, hysteria
wildly, fiercely
to a very large degree; very much
in addition
absurdly
absurdly
often
greatly, a lot
especially
especially
absurdly
absurdly
(used with forms of the verb 'be', e.g. 'is/was') true; like that; (used for emphasis) to such a large (or small) extent (that); that is why; with the result that
to a degree
much; extremely
very
extremely
enormously
wildly, fiercely
wildly, fiercely
(especially) exceptionally
infrequently
greatly
immensely
destructively
destructively