Found 2 items, similar to coolheaded.
English → English (WordNet) Definition: coolheaded coolheaded adj : 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, nerveless]
English → English (gcide) Definition: coolheaded 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]