/ ˈmænərɪzəm; NAmE / noun
1.
[ C ] a particular habit or way of speaking or behaving that sb has but is not aware of :
nervous / odd / irritating mannerisms
2.
[ U ] too much use of a particular style in painting or writing
3.
Mannerism [ U ] a style in 16th century Italian art that did not show things in a natural way but made them look strange or out of their usual shape