Relating to or based on a notion or idea rather than concrete reality.

A theoretical or hypothetical concept used for analysis or decision-making.

सैद्धांतिक

English Usage: The notional promotion of the idea gave rise to several research initiatives.

Hindi Usage: इस विचार का सैद्धांतिक प्रचार कई शोध पहलों को जन्म दिया।

Existing only in theory; not actual or real.

Speculative or abstract, lacking concrete details.

अवास्तविक

English Usage: The company made notional plans for expansion without a solid budget.

Hindi Usage: कंपनी ने ठोस बजट के बिना विस्तार के लिए अवास्तविक योजनाएँ बनाई।