Antonyms of adj hot_and_bothered

1 sense of hot and bothered

Sense 1
flustered, hot and bothered (predicate), perturbed, rattled -- (thrown into a state of agitated confusion; (`rattled' is an informal term))

INDIRECT (VIA discomposed) -> composed -- (serenely self-possessed and free from agitation especially in times of stress; "the performer seemed completely composed as she stepped onto the stage"; "I felt calm and more composed than I had in a long time")

Similarity of adj hot_and_bothered

1 sense of hot and bothered

Sense 1
flustered, hot and bothered (predicate), perturbed, rattled -- (thrown into a state of agitated confusion; (`rattled' is an informal term))
       => discomposed (vs. composed) -- (having your composure disturbed; "looked about with a wandering and discomposed air")