at ease

at ease or at one's ease  {adj.} or  {adv. phr.}

1. In comfort; without pain or bother.

You can't feel at ease with a toothache.

2. or at one's ease

Comfortable in one's mind; relaxed, not troubled. — Often used in the phrase "put at ease" or "put at one's ease."

We put Mary at her ease during the thunderstorm by reading her stories.

Compare: AT HOME (2).

Contrast: ILL AT EASE, ON EDGE.

3. Standing with your right foot in place and without talking in military ranks.

The sergeant gave his men the command "At ease!"

Compare: PARADE REST.