noun, noun which may take the genitive case particle 'no'
not going outside; not letting outside; safekeeping
Used for keeping someone or something from going out, or for staying inside oneself. The 'safekeeping' nuance appears in contexts like keeping a person or item securely indoors. Often used in the pattern 不出を命じる (order confinement) or 不出にする (keep inside).
彼は家族に不出を命じられた。
He was ordered by his family not to go out.
大事な書類は不出にして金庫に保管している。
I keep the important documents securely inside the safe.