肝心
Common
I-adj
Noun
Noun
1
adjectival nouns or quasi-adjectives (keiyodoshi)nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi)
essential;important;crucial;vital;main
なんであれ物事の本体を捕らえる事が肝心だ。
No matter what the problem is, it's essential to get at the heart of the matter.
Other forms
肝腎 【かんじん】 (rarely used kanji form)