Thesaurus.com Dictionary.com

with all marbles

ADJECTIVE

levelheaded

Synonyms

STRONGEST

balanced dependable discreet even-tempered judicious prudent rational sane sensible unflappable wise

WEAK

all there collected commonsensical composed cool cool as cucumber coolheaded far-sighted in one's right mind practical self-possessed steady together

Antonyms

STRONGEST

careless foolish incautious indiscreet irrational reckless senseless thoughtless unrealistic unreasonable unsound unwise

WEAK

nervous upset

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