Ebullient vs. Effusive — What's the Difference?

Zestfully enthusiastic.

Unrestrained or excessive in emotional expression; gushy

Boiling or seeming to boil; bubbling.

Profuse; overflowing

Enthusiastic; high-spirited.

Gushy; unrestrained, extravagant or excessive (in emotional expression).

Boiling or agitated as if boiling.

(archaic) Pouring, spilling out freely; overflowing.

Boiling up or over; hence, manifesting exhilaration or excitement, as of feeling; effervescing.

Extrusive; having solidified after being poured out as molten lava.

Joyously unrestrained

Pouring out; pouring forth freely.

Formed by an outpouring of molten lava, or pertaining to rocks so formed.

Overly demonstrative; expressing emotion in an unrestrained manner; exhibiting unrestrained enthusiasm; - of people and human actions; as, effusive thanks; an effusive letter of recommendation. Contrasted with reserved.

Uttered with unrestrained enthusiasm;

Extravagantly demonstrative;