expression, noun which may take the genitive case particle 'no', adverb, noun
as it is; unvarnished; frank; plain
Describes something in its natural, unadorned state, or a truthful, undisguised manner. Often used in set phrases like あるがままの自分 (one's true self) or あるがままを受け入れる (accept things as they are).
See also: ありのまま
彼はあるがままの自分を見せてくれた。
He showed me his true self.
It's important to accept reality as it is.
ありのまま is a near-synonym also meaning 'as it is' or 'the plain truth'. あるがまま is slightly more formal or literary, while ありのまま is more common in everyday speech.
A fixed phrase composed of the verb ある (to be) + が (subject marker) + まま (state, condition). Literally 'the state of being as it is'. The exact historical derivation is uncertain, but it has been used in literary and philosophical contexts for centuries.