also: にげん
noun
double-dealing; going back on one's word
Refers to saying different things at different times, breaking a promise, or being two-faced. Often used in negative contexts or set phrases like 二言はない (I won't go back on my word).
彼は二言があるから信用できない。
He can't be trusted because he goes back on his word.
一度決めたら二言はない。
Once I decide, I won't go back on my word.
noun
repeating oneself; saying the same thing twice
Used when someone says something again unnecessarily. Often appears in the set phrase 二言と繰り返さない (not to repeat oneself).
同じことを二言と言うな。
Don't repeat yourself.
Compound of 二 (two) and 言 (word/speech), literally meaning 'two words'. The meaning of inconsistency or repetition derives from the idea of having two different statements.