Level Headed American British adjective
If you say someone is level-headed, you allude to his ability to remain calm and rational in the face of adversity.
We need a leader who is level-headed and practical in this campaign.
His level-headed attitude is well worth considering.
Having encountered a number of difficulties these months, Jane was still a wise and level-headed guy.
Used to advise somebody to calm down
Used to describe someone kind, calm and pleasant
To stay calm in a difficult situation and react to unexpected things quickly
Used to say that someone should cool down or calm down