I. -ˌslēv noun
Date: circa 1566
: the sleeve of a shirt
•
- in one's shirtsleeves
II. adjective
also shirt·sleeves -ˌslēvz ; or shirt·sleeved -ˌslēvd
Date: 1842
1.
a. : 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