tempered

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Having a specified temper or disposition. Often used in combination.
• adjective Adjusted or attuned by the addition of a counterbalancing element; moderated or measured.
• adjective Made appropriately hard or flexible by tempering.
• adjective Having the requisite degree of hardness or elasticity. Used of glass or a metal.
• adjective Music Tuned to temperament. Used of a scale, an interval, a semitone, or intonation.

from The Century Dictionary.

• Having a certain temper or disposition; disposed: often used in composition: as, a good-tempered man.
• In music, noting an instrument, scale, or interval that is tuned in accordance with some other temperament than just or pure temperament, specifically one tuned in equal temperament. See temperament, 5.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Brought to a proper temper; ; having (such) a temper; -- chiefly used in composition

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Of one's disposition.
• adjective Pertaining to the metallurgical process for finishing metals.
• adjective Of something moderated or balanced by other considerations.
• adjective music Pertaining to the well-tempered scale, where the twelve notes per octave of the standard keyboard are tuned in such a way that it is possible to play music in any major or minor key and it will not sound perceptibly out of tune.
• verb Simple past tense and past participle of temper.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective made hard or flexible or resilient especially by heat treatment
• adjective adjusted or attuned by adding a counterbalancing element