(v) become less tense, rest, or take one's ease, Syn. unbend, unwind, slow down, decompress, loosen up, Ant. tense, Example:He relaxed in the hot tub; Let's all relax after a hard day's work
(v) become less tense, less formal, or less restrained, and assume a friendlier manner, Syn. loosen up, Example:our new colleague relaxed when he saw that we were a friendly group