English Dictionary

self-stultifying

形容詞

比較不可

(philosophy) Of a statement or idea: that is inherently disproven, undermined or hindered by the very act of expressing it, but without it being a logical contradiction; self-defeating.

日本語の意味

（哲学）自己打ち消し的な：すなわち、表現そのものによって自らの主張や考えが無力化、または弱体化される状態（論理的矛盾ではなく、行為自体が逆効果をもたらす）

Declaring that 'no one can be trusted' while you yourself betray confidences is self-stultifying.

自分が他人の信頼を裏切りながら「誰も信頼できない」と宣言するのは、その発言が自らの正当性を損なう行為だ。

意味（1）

(philosophy) Of a statement or idea: that is inherently disproven, undermined or hindered by the very act of expressing it, but without it being a logical contradiction; self-defeating.

It's self-stultifying for a politician to say that all politicians are liars.