phlegm
[noun]
Synonyms: apathy, impassivity, insensibility, stoicism, stolidity, unresponsiveness, equanimity, ataraxy, calmness, composure, coolness, imperturbability, sangfroid, self-possession

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Related Words: nonchalance, unconcern

[TahlilGaran] English Synonym Dictionary ▲

phlegm /flem/ noun [uncountable]
[Date: 1300-1400; Language: Old French; Origin: fleume, from Latin phlegma, from Greek, 'flame, phlegm', from phlegein 'to burn']

1. the thick yellowish substance produced in your nose and throat, especially when you have a cold Synonym : mucus

2. unusual calmness in worrying, frightening, or exciting situations

[TahlilGaran] Dictionary of Contemporary English ▲