丁寧懇切
ていねいこんせつ
teineikonsetsu
JMdict entry #2050470
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adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
rare termyojijukugo
kind, careful, and thorough (of an explanation, advice, etc.); thoughtful and scrupulous
see: 懇切丁寧