notional
adjective /ˈnəʊʃənl/
/ˈnəʊʃənl/
(formal)- based on a guess, estimate or theory; not existing in reality
- My calculation is based on notional figures, since the actual figures are not yet available.
Word Originlate Middle English (in the Latin sense): from obsolete French, or from medieval Latin notionalis ‘relating to an idea’, from notio(n-) ‘idea’, from notus ‘known’, past participle of noscere.