unfaithful
01
不貞な, 裏切り者
having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend
02
不忠実な, 不信実な
not true to duty or obligation or promises
例
The knight was punished for being unfaithful to his oath of loyalty.
騎士は忠誠の誓いに対して不忠実であったために罰せられた。
04
不誠実な, 信頼できない
not trustworthy
語彙ツリー
unfaithful
faithful
faith
