Shirabe
確実
Common I-adj Noun
Español jmdict
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) ciertamente evidente
English jmdict
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) certain;sure;definite;reliable;sound;solid;safe;secure
This is a slow but certain way.