enthusiastic

adjective

en·​thu·​si·​as·​tic in-ˌthü-zē-ˈa-stik 

en-

also -ˌthyü-

: filled with or marked by enthusiasm

enthusiastic supporters

an enthusiastic recommendation

enthusiastically

in-ˌthü-zē-ˈa-sti-k(ə-)lē 

en-

also -ˌthyü-

adverb

Synonyms of enthusiastic

• excited
• avid
• eager
• ardent
• anxious
• keen

Examples of enthusiastic in a Sentence

They were enthusiastic supporters of the president.

I'm not wildly enthusiastic about your latest idea.

She received an enthusiastic welcome.

Recent Examples on the Web

The novelist, who before becoming a professional writer was a university professor of English philology, said she is encouraged by the enthusiastic crowds of young people who come to her presentations at book fairs across the world. —Miami Herald, 25 Nov. 2025

Capital One was a late but enthusiastic lounge-war combatant. —Zach Helfand, New Yorker, 24 Nov. 2025

When Deanna Strable, the chief executive officer of Principal Financial, mandated a four-hour, in-person artificial intelligence training session for her executive leadership team, the initial response wasn’t entirely enthusiastic. —John Kell, Fortune, 21 Nov. 2025

To be sure, other speakers weren't as enthusiastic as Williams. —Jeff Cox, CNBC, 21 Nov. 2025

Word History

Etymology

borrowed from New Latin & Greek; New Latin enthūsiasticus, borrowed from Greek enthousiastikós "inspired, excited," from enthousiastḗs "person inspired by a god" + -ikos -ic entry 1 — more at enthusiast

First Known Use

1603, in the meaning defined above

Rhymes for enthusiastic

• aeroelastic
• ecclesiastic
• elastoplastic
• iconoclastic
• interscholastic
• megaloblastic
• osteoblastic
• photoelastic
• thermoelastic
• viscoelastic
• anaplastic
• bioclastic

Kids Definition

enthusiastic

adjective

en·​thu·​si·​as·​tic in-ˌth(y)ü-zē-ˈas-tik 

: filled with or marked by enthusiasm

an enthusiastic welcome

enthusiastically

-ti-k(ə-)lē 

adverb