(of speech or actions) disguising intentions or masking the truth

狡猾な, ずる賢い
openly and shamelessly done, without trying to hide the truth or wrongdoing

厚かましい, 恥知らずな
false, fake, or not genuine

偽の, いんちきな
not displayed or acknowledged openly

秘密の, 隠された
lacking sincerity and honesty, particularly by not revealing as much as one knows

不誠実な, 偽善的な
deliberately designed to mislead

誤解を招く, 欺瞞的な
persuasive in a way that is deceitful

軽薄な, 表面的な
(of a person) deliberately telling lies

嘘つきの, 欺瞞的な
attractive in a showy or superficial way but lacking real value or sincerity

派手で表面的に魅力的だが中身がない, 見かけ倒しの
seemingly truthful but wrong in nature

見せかけの, 誤解を招く
the act of persuading someone by using flattery, charm, or gentle teasing

お世辞, 媚び
(of explanations or reasoning) sounding valid but being unsound actually

見せかけの, 誤解を招く
relating to something that is created artificially instead of naturally

人工的な, 不自然な
secretive in a sly or morally questionable way

こっそりした, 陰険な
done, made, or obtained in a secretive way, especially to avoid notice or disapproval

こっそりとした, 密かな
a person used by someone else to do unpleasant or risky tasks, often without realizing it
| ケンブリッジ英語: CPE (C2 熟練度) |
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