noun, noun which may take the genitive case particle 'no'
no-fault; without fault; impeccability
Primarily a legal and formal term meaning absence of fault or negligence. Often used attributively as in 無過失責任 (no-fault liability).
この保険は無過失事故にも対応します。
This insurance also covers no-fault accidents.
無過失責任の原則は製造物責任法で重要だ。
The principle of no-fault liability is important in product liability law.
無罪 means 'innocence' in a criminal sense, while 無過失 is broader and often used in civil liability contexts.
Compound of 無 (mu, 'without') and 過失 (kashitsu, 'fault, negligence').