losing one's head

Acting without composure

Losing one's head means becoming so upset, angry, or excited that you can't think clearly or act rationally.

The image is of the head—seat of reason—becoming detached from decision-making: She lost her head and said things she regretted.

Someone who keeps their head stays calm under pressure.

Literally, losing one's head is decapitation.

Related

emergency · forgetfulness · frenzy · flying off the handle · confusion · recklessness · overreaction · rashness · fear · impulsiveness · guillotine · French Revolution · disorientation · agitation · distress · absentmindedness · misjudgment · tunnel vision

Opposites
emotional composure

losing one's headkeeping one's cool

Staying composed when provoked

keeping calm

Family

lose, losing, loser, losers, loss, losses, head, heads, headed

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