Synonyms of coolheaded

1 Syllable

cool, sane, wise

2 Syllables

prudent, discreet, steady

3 Syllables

rational, practical, sensible, collected, judicious, together, far-sighted, composed, balanced

4 Syllables

levelheaded, unflappable, self-possessed, level-headed, dependable

5 Syllables

commonsensical, even-tempered