insincere
insincere adjective uk/ˌɪnsɪnˈsɪər/ uspretending to feel something that you do not really feel, or not meaning what you say
неискренний
an insincere apology insincere ly adverb
неискренне
insincerity noun [ U ] uk/ˌɪnsɪnˈserəti/ us
неискренность