coolheaded

from WordNet (r) 3.0 (2006)

coolheaded
    adj 1: marked by calm self-control (especially in trying
           circumstances); unemotional; "play it cool"; "keep cool";
           "stayed coolheaded in the crisis"; "the most nerveless
           winner in the history of the tournament" [syn: {cool},
           {coolheaded}, {nerveless}]

from The Collaborative International Dictionary of English v.0.48

cool-headed \cool"-head`ed\, coolheaded \cool"head*ed\, a.
   Having a temper not easily excited; free from passion;
   unshakably calm and collected. -- {Cool"-head`ed*ness}, n.

   Syn: cool, imperturbable, unflappable.
        [1913 Webster + WordNet 1.5]

[email protected]