negotiable

adjective

1 part-time barman required, hours and salary negotiable:

open to discussion, subject to discussion, flexible, open to modification, discussable;

unsettled, undecided, debatable.

2 the gulley was negotiable, though it was a tough scramble up the far side:

passable, navigable, crossable, traversable;

free from obstruction, open, clear, unblocked, unobstructed.

3 negotiable cheques:

transferable, usable as legal tender;

valid.

negotiable Oxford Dictionary of English