due form, official, formality
Example sentences
彼は息子を正式の相続人と認めた。
He recognized his son as lawful heir.
正式にはそれは彼の責任ではあるが、実際は秘書が全部こなしている。
Officially it is his responsibility, but in fact his secretary does all the work.
正式な契約を待たなくても、その件は電話で処理できます。
Instead of waiting for a contract, we can handle it over the phone.