enthusiastic

B1 Topic:Science & Research

US /ɪnˌθuːziˈæstɪk/ UK /ɪnˌθjuːzɪˈæstɪk/ See IPA manual

Freq #10618

Meanings

1

adj
Showing great excitement and interest in something.

The students were enthusiastic about the new science project.
2

adj
Eager and full of energy and motivation.

He gave an enthusiastic welcome to the visitors.

Thesaurus

Synonyms

1 adj · showing great excitement... ardent keen lively

2 adj · eager and full of energy... ebullient

More animated avid bubbly eager earnest energetic excited exhilarated fanatic fanatical

Opposites

apathetic cold dispassionate frigid impassive indifferent lackadaisical languid lethargic listlessunemotionedunenthusiastic

Word family

Derived forms antienthusiasticenthusiasticalenthusiasticallyhyperenthusiasticnonenthusiasticoverenthusiasticpseudoenthusiasticsuperenthusiasticultraenthusiasticunenthusiastic

Related forms active enthusiasm enthusiast exciting happy

Etymology

From Ancient Greek ἐνθουσιαστικός (enthousiastikós), from either ἐνθουσιασμός (enthousiasmós) or ἐνθουσιάζω (enthousiázō) + -τικός (-tikós).

ἐνθουσιαστικός Ancient Greek

View etymology graph ->

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# enthusiastic

**Type:** Word
**Level:** B1
**Part of speech:** adj
**IPA (US):** /ɪnˌθuːziˈæstɪk/
**IPA (UK):** /ɪnˌθjuːzɪˈæstɪk/
**Frequency rank:** 10618

## Meanings
1. Showing great excitement and interest in something.
2. Eager and full of energy and motivation.

## Examples
- The students were enthusiastic about the new science project.
- He gave an enthusiastic welcome to the visitors.

## Synonyms
- animated
- ardent
- avid
- bubbly
- eager
- earnest
- ebullient
- energetic
- excited
- exhilarated
- fanatic
- fanatical

## Antonyms
- apathetic
- cold
- dispassionate
- frigid
- impassive
- indifferent
- lackadaisical
- languid
- lethargic
- listless
- unemotioned
- unenthusiastic

## Derived Forms
- antienthusiastic
- enthusiastical
- enthusiastically
- hyperenthusiastic
- nonenthusiastic
- overenthusiastic
- pseudoenthusiastic
- superenthusiastic
- ultraenthusiastic
- unenthusiastic

## Related Forms
- active
- enthusiasm
- enthusiast
- exciting
- happy

## Roots and Affixes
- Root: ἐνθουσιαστικός

## Etymology
From Ancient Greek ἐνθουσιαστικός (enthousiastikós), from either ἐνθουσιασμός (enthousiasmós) or ἐνθουσιάζω (enthousiázō) + -τικός (-tikós).

## AI Etymology
Enthusiastic comes from Ancient Greek ἐνθουσιαστικός (enthousiastikós), from either ἐνθουσιασμός (enthousiasmós) or ἐνθουσιάζω (enthousiázō) + -τικός (-tikós). In current use, the main senses are “Showing great excitement and interest in something” and “Eager and full of energy and motivation”.

## Topics
- Science & Research

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enthusiastic

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