shirtsleeve
nounDefinition of shirtsleeve
(Entry 1 of 2)
: the sleeve of a shirt
in one's shirtsleeves
or in shirtsleeves
: wearing a shirt but no coat
shirtsleeve
adjectiveDefinition of shirtsleeve (Entry 2 of 2)
1a
: being without a coat
a shirtsleeve spectator
b
: calling for the removal of coats for the sake of comfort or efficiency
shirtsleeve weather
2
: marked by informality and directness
shirtsleeve diplomacy
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