noun
one person; a person
Honorific term for a single person, used in respectful contexts to refer to someone without specifying gender or identity.
一方のお客様がお見えになりました。
One customer has arrived.
この席は一方様用です。
This seat is for one person.
na-adjective
ordinary; common; nothing special
Used in the negative form 一方ならぬ to mean 'not ordinary' or 'extraordinary'. Rarely used affirmatively in modern Japanese.
彼の努力は一方ならぬものがあった。
His efforts were extraordinary.
一方ならぬご厚情に感謝いたします。
I am grateful for your extraordinary kindness.
Compound of 一 (ひと, 'one') and 方 (かた, honorific suffix for persons). The adjectival sense derives from the idea of 'one way' or 'one-sided', but is now limited to the negative phrase 一方ならぬ.