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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"
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not excited
"made an unexcited appraisal of the situation"
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characterized by an absence or near absence of agitation or activity
"a quiet life"; "a quiet throng of onlookers"; "quiet peace-loving people"; "the factions remained quiet for almost 10 years"
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not subject to change or variation especially in behavior
"a steady beat"; "a steady job"; "a steady breeze"; "a steady increase"; "a good steady ballplayer"
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without strain or anxiety
"gave the impression of being quite relaxed"; "a relaxed and informal discussion"
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psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike
"relations were cool and polite"; "a cool reception"; "cool to the idea of higher taxes"