positional

Short definition from Wiktionary

Adjective

1. 1
   Relating to the position of something.
2. 2
   Having or pertaining to a value that is a function of its social desirability, as opposed to its utility.
3. 3
   Based on long-term strategy, on gaining and exploiting small advantages, and on analyzing the larger position, rather than calculating more immediate tactics.
4. 4
   An argument that is passed to a subroutine according to its position in the invocation code, rather than on its name; compare with named.

Noun

1. 1
   A member of a class of verb in some languages that indicates position or posture.