Temperate

adj.calm, thoughtfulformal

What it means

Calmly moderate in behavior, expression, or judgment.

Reach for it when praising restraint that avoids emotional or rhetorical extremes

His temperate reply lowered the temperature of a debate that had become personal.

everyday
calm
when freedom from agitation is all the sentence needs
not when Calm does not convey moderation in appetite, opinion, or language.
everyday
mild
when gentleness and low intensity are desirable
not when Mild can imply weakness and is wrong for firm but controlled conduct.
everyday
moderate
when distance from extremes is the main idea
not when Moderate can describe a position or amount without praising self-control.
warm
even-tempered
when a person's stable disposition is being praised
not when Even-tempered is about character over time, not one carefully limited response.
professional
balanced
when competing considerations receive fair weight
not when Balanced can describe reasoning without saying anything about composure.
professional
measured
when words or actions are deliberately controlled
not when Measured may sound calculated if the person is also warm and spontaneous.
formal
judicious
when wise selection rather than emotional control is central
not when Judicious misses the sense of avoiding excess in one's manner.
formal
restrained
when holding back a stronger reaction deserves emphasis
not when Restrained can suggest suppressed feeling rather than settled balance.

temperate response
A temperate response kept one inaccurate claim from derailing the whole discussion.
temperate language
The chair used temperate language while making the boundary unmistakable.
temperate judgment
Her temperate judgment weighed the urgency without exaggerating the risk.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.