busy bee (noun) eager beaver: industrious person
Sinonime: at peace,
clear, collected,
comfortable, composed,
content, cool as a cucumber, cool*,
dispassionate,
easy, easygoing,
fair, halcyon, imperturbable,
laid-back*, limpid,
patient, peaceful, pellucid,
phlegmatic,
placid, poised,
quiescent, quiet, reconciled, resting,
satisfied,
sedate, self-possessed,
smooth, still, stoical, tranquil, unflappable, unruffled, untroubled
Antonime: agitated,
disturbed, excited,
troubled