ALL meanings of shirtsleeve
shirt-sleeve
S s - adjective shirtsleeve not wearing a jacket; informally dressed: a shirt-sleeve mob. 1
- adjective shirtsleeve warm enough to live or work in without wearing a jacket or coat: shirt-sleeve weather in November. 1
- adjective shirtsleeve simple, plain, and informal; direct and straightforward in approach, manner, etc.: shirt-sleeve diplomacy. 1
- countable noun shirtsleeve Shirtsleeves are the sleeves of a shirt. If a man is in shirtsleeves or in his shirtsleeves, he is wearing a shirt but not a jacket. 0
- noun shirtsleeve the sleeve of a shirt 0