extremely

Most remote in any direction; outermost or farthest: the extreme edge of the field.

Being in or attaining the greatest or highest degree; very intense: extreme pleasure; extreme pain.

Extending far beyond the norm: an extreme conservative. See Synonyms at excessive.

Of the greatest severity; drastic: took extreme measures to conserve fuel.

Biology

1. Characterized by severe, usually oxygen-poor environmental conditions.

2. Having an affinity for such conditions: an extreme microorganism.

3. Very dangerous or difficult: extreme rafting.

4. Participating or tending to participate in a very dangerous or difficult sport: an extreme skier.

Sports

1. Very dangerous or difficult: extreme rafting.

2. Participating or tending to participate in a very dangerous or difficult sport: an extreme skier.

Archaic Final; last.

The greatest or utmost degree or point.

Either of the two things situated at opposite ends of a range: the extremes of boiling and freezing.

An extreme condition.

An immoderate, drastic expedient: resorted to extremes in the emergency.

Mathematics

1. The first or last term of a ratio or a series.

2. A maximum or minimum value of a function.

Logic The major or minor term of a syllogism.