moderate

Being within reasonable limits; not excessive or extreme.

Not violent or subject to extremes; mild or calm; temperate.

Of medium or average quantity or extent.

Of limited or average quality; mediocre.

Opposed to radical or extreme views or measures, especially in politics or religion.

One who holds or champions moderate views or opinions, especially in politics or religion.

To cause to be less extreme, intense, or violent.

To preside over.

To become less extreme, intense, or violent; abate.