Effulgent vs Vivacious - What's the difference?

Effulgent is a related term of vivacious.

is that effulgent is shining, resplendent, radiant while vivacious is lively and animated; full of life and energy.

(en adjective)

Shining, resplendent, radiant.

* 1912 , (Rex Ellingwood Beach), The Net , ch. 3:

[H]er cheeks were colorless, yet they spoke of perfect health, and shone with that same pale, effulgent glow.

(en adjective)

Lively and animated; full of life and energy.

(obsolete) Long-lived.

(rare) Difficult to kill.

* (lively and animated) animated, bubbly, ebullient, high-spirited, lively, vibrant, exciting

* vivaciousness

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