composed Play adjectiveHaving one's feelings and expression under control; calm. SYNONYMS and collectedas cool as a cucumberat easecalmchilledcollectedcontrolledcoolcool-headedequableequanimouseven-temperedimperturbablelaid backlevel-headednonplussedrelaxedself-controlledself-possessedserenetogethertranquilunagitatedunbotheredundisturbedunfazedunflappableunflusteredunmovedunperturbedunruffleduntroubled