二心(ふたごころ)

ふたごころ
noun
duplicity; treachery; disloyalty
1. duplicity; two-facedness; disloyalty
having hidden intentions or being disloyal to someone while pretending loyalty
二心(ふたごころ)のない人間(にんげん)だ。
He is a person without duplicity.
彼(かれ)には二心(ふたごころ)があるようだ。
It seems he has hidden intentions.
二心(ふたごころ)を抱(いだ)いて仕(つか)えることはできない。
One cannot serve with a disloyal heart.

ETYMOLOGY:
二(ふた) (two) + 心(こころ) (heart/mind) = literally "two hearts," meaning divided loyalty or hidden intentions.

USAGE:
Often used in negative constructions like 二心(ふたごころ)がない (to be without duplicity) or 二心(ふたごころ)なく (without reservation).

CONTRAST:

  • 一心(いっしん) - single-mindedness; wholehearted devotion
  • 二心(にしん) - same word but literary reading
general
Added 2026.1.28 12:33
08500/08735_futagokoro