noun
A figure of speech combining contradictory terms, such as 'open secret' or 'deafening silence'. Used in literary and rhetorical contexts.
「公然の秘密」は撞着語法の一例だ。
'Open secret' is an example of an oxymoron.
Also means oxymoron, but 撞着語法 is the more common term in Japanese rhetoric.
From 撞着 (contradiction) + 語法 (usage of words). The exact historical derivation is uncertain, but the term is used in Japanese rhetoric to describe a figure of speech that combines contradictory ideas.