Synonyms of notional

2 Syllables
made-up, dreamy, abstract, unreal, fancied, ideal, spectral
3 Syllables
fanciful, supposed, theoretic, fictional, dreamlike, conceptual, capricious, quixotic, storybook, assumed, chimeral, fantastic, figmental, shadowy, whimsical, dreamed-up, chimeric, phantasmal, phantasmic, vagarious, fabulous
4 Syllables
delusive, illusive, illusory, chimerical, visionary, legendary, fantastical, apocryphal, conceptive, ideational, deceptive, nonexistent, unsubstantial, theoretical, imagined, humorsome
5 Syllables
speculative, hypothetical, formularized, apparitional, mythological, imaginary, supposititious
6 Syllables
hallucinatory, imaginative