How to say "double-dealing" in Japanese

• 二言にごんCommon
  nounCovers double-dealing as going back on what one has said: breaking a promise or contradicting one's earlier statement. Fits someone who first agrees and then reneges.
• 二枚舌にまいじたCommon
  no-adjectiveThe idiomatic choice for double-dealing in speech: telling different people different, incompatible things. Suits a glib talker, such as a politician, whose statements cannot all be true.
  お前まえは二枚舌にまいじたを使つかっている。↗

  You are lying to me.
• 表裏ひょうりCommon
  noun, suru verb, intransitive verbCovers double-dealing as two-facedness: an outward manner concealing opposite feelings or intentions. Suits someone friendly to your face while acting against you behind your back.
  彼かれの言葉ことばには表裏ひょうりがない。↗

  He is sincere in what he says.

Choose 二言 when double-dealing means going back on one's word, 二枚舌 for glibly telling different people contradictory things, and 表裏 for two-faced behavior that hides opposite intentions behind a friendly front.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 二言にごんdouble-dealing
• 二枚舌にまいじたdouble-dealing
• 両舌りょうぜつdouble-dealing
• 二心ふたごころduplicity
• 裏表うらおもてdouble-dealing
• 表裏ひょうりduplicity