notional

Of, containing, or being a notion; mental or imaginary.

Speculative or theoretical.

Understood in terms of semantic content rather than grammatical structure. The word did is notional in We did the work and relational in We did not agree.

Of or relating to the underlying asset or principal of a financial derivative such as a swap contract.

Pertaining to or expressing a notion or general conception; formed by abstraction and generalization; also, produced by metaphysical or logical reflection.