traitorous
https://gyazo.com/c39ebfe588b6349ae46b9a2dd68b79bb
FAITHLESS applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty. e.g. faithless allies
FALSE stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery. e.g. betrayed by false friends
DISLOYAL implies a lack of complete faithfulness to a friend, cause, leader, or country. e.g. disloyal to their country
e.g. traitorous acts punishable by death
TREACHEROUS implies readiness to betray trust or confidence. e.g. a treacherous adviser
e.g. a perfidious double-crosser
adjective
⦅文⦆ 〈行動などが〉反逆[裏切り, 謀反]の
e.g. when his traitorous actions were discovered, he was imprisoned.
DERIVATIVES