More stellular refers to something that is even more star-like or celestial in appearance. There are several synonyms that can be used to describe something as more stellular. These include words like celestial, heavenly, astral, ethereal, and otherworldly. Other synonyms that can be used to convey the idea of something being more stellular include words like sparkling, shining, glittering, radiating, and luminescent. These words all evoke the imagery of stars and other celestial bodies that light up the night sky. The use of these synonyms can help to create a more vivid and poetic description of something that is truly awe-inspiring and otherworldly in appearance.