To reduce the amount or intensity of; lessen; reduce; restrain; specifically, to reduce from a large amount or great degree to a medium quantity or intensity: as, to moderate the heat of a room; to moderate one's anger, ardor, or passions.To decide as a moderator; judge.Synonyms To mitigate, abate, appease, pacify, quiet, assuage, soothe, soften.To become less violent, severe, rigorous, or intense: as, the storm begins to moderate.To preside as a moderator, as at a meeting.Restrained; temperate; keeping within somewhat restricted limits in action or opinion; avoiding extremes or excess; thinking or acting soberly or temperately: as, to be moderate in all things; a moderate drinker.Thinking, speaking, or acting with habitual slowness; very deliberate.Of things, limited in extent, amount, or degree; not extreme, excessive, or remarkable; restricted; medium: as, moderate wealth or poverty; a moderate quantity; moderate opinions or ability; moderate weather or exercise.Synonyms Moderate, Temperate, reasonable, judicious, mild. When used absolutely, moderate, nearly always refers to a person's temper or opinions, whereas temperate similarly used generally refers to a person's habits in respect to bodily indulgence: a moderate man is one who is not extreme in his views or violent in his sentiments; a temperate man, one who is not addicted to over-indulgence either in eating or in drinking.n. One who is moderate in opinion or action; one who is opposed to extreme views or courses, especially in politics or religion.