Meaning ofcool-headedin English

Adjective

1. remaining calm under stress; composed (in difficult situations)
   The manager remained cool-headed during the crisis and made rational decisions.
   Synonyms:

   level-headedcomposedcalmunflappablecollectedimperturbableserenepoised
   Antonyms:

   hot-headedimpulsiveagitatedfrantichysterical