litotes
/ˈlaɪtəʊtiːz/noun
mass noun
- ironical understatement in which an affirmative is expressed by the negative of its contrary (e.g. I shan't be sorry for I shall be glad)反叙法, 曲言法（如用I shan't be sorry代替I shall be glad等）。
词源
late 16th cent.: via late Latin from Greek litotēs, from litos 'plain, meagre'.