genius, supurb, ablaze, bright, coruscating, dazzling, effulgent, flashy, fulgent, gleaming, glittering, glossy, incandescent, intense, lambent, lucent, luminous, lustrous, radiant, refulgent, resplendent, scintillating, showy, sparkling, vivid
smart, and ingenious.
excellent
Both are correct.
Synonym means: a word having the same or nearly the same meaning as another in the language. Definition means: the act of defining or making definite, distinct, or clear / the formal statement of the...
The word no can be replaced in some contexts by none, negative, zero, or nothing.