'Unipersonal' definitions:

Definition of 'Unipersonal'

From: GCIDE

Unipersonal \U"ni*per"son*al\, a. [Uni- + personal.] [1913 Webster]
1. Existing as one, and only one, person; as, a unipersonal God. [1913 Webster]
2. (Gram.) Used in only one person, especially only in the third person, as some verbs; impersonal. [1913 Webster]