lower one's guard

Drop defensive posture

To lower one's guard is to relax vigilance or become less defensive, leaving oneself vulnerable to attack or criticism.

The phrase comes from boxing, where dropping protective hands exposes the face.

In everyday use, it describes becoming emotionally open or careless after a period of caution: I finally lowered my guard around her.

Don't lower your guard just because things seem calm.

Related

trust · exposure · cooperation · intimacy · bare one's soul · forgiveness · risk-taking · rapport · heart to heart · honesty · naivety · disarmament · complacency · empathy · insecurity · unpreparedness · relaxation · yielding

Opposites
defensive vigilance

lower one's guardkeep one's guard up

Remain watchfully protective

stay alert · be on the lookout · watch one's back · steel oneself · keep watch

emotional openness

lower one's guardshut down

Cease to operate

withdraw · clam up · hold back · bottle up · keep one's distance

Family

lower, lowers, lowered, lowering, lowest, lowness, ones, guard, guards

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G