1.
prescribed, specified, designated
Something that has been decided or set in advance by rules, regulations, or agreement. Used as a modifier before nouns to indicate that something follows an established standard.
Usage
Almost always used as a modifier before a noun (所定の + noun). Very common in formal and administrative language — forms, procedures, official documents, and regulations. Rarely used in casual conversation.
Common collocations
Related Words
Synonym:
規定 (regulation, provision)