notionalist Definition

notion
noun

1. An impression, conception or understanding.

Thesaurus: idea, thought, concept, understanding, inkling, intimation, insight, apprehension, conceit.
2. A belief or principle.

Thesaurus: idea, opinion, belief, principle.
3. An inclination, whim or fancy.

Thesaurus: impulse, whim, fancy, inclination.
(originally N Amer, especially US)
4. Small items used in sewing such as pins, needles, threads and fastenings, etc.

Form: notions

Derivative: notional

Existing in imagination only.

Theoretical.

Hypothetical.

Having a full meaning of its own.

Derivative: notionalist
noun

A theorist.

Derivative: notionally
adverb

Etymology: 16c: from Latin notio an idea.