unsigned

(not comparable)Not accepting negative numbers; having only a positive value (or zero).

We use an unsigned variable to store the employee's salary, since it will never be less than zero.

беззна́ковыйbezznákovyj

(not comparable)Lacking a signature, unendorsed.

The bank rejected the unsigned check.

неподпи́санныйnepodpísannyj

lacking a signature

(not comparable)Not signed to an organization such as a sports club or record label.