Definitions

fanatical

[fuh-nat-i-kuhl] / fəˈnæt ɪ kəl /

ADJECTIVE

overenthusiastic

Synonyms

STRONGEST

bigoted dogmatic enthusiastic fervent frenzied impassioned narrow-minded obsessive passionate rabid single-minded stubborn violent zealous

WEAK

biased bugged burning contumacious credulous devoted domineering erratic extreme feverish fiery headstrong high on immoderate impulsive incorrigible infatuated mad monomaniacal nuts for obsessed obstinate opinionated partial partisan possessed prejudiced radical raving turned on unruly visionary wild willful

Antonyms

STRONGEST

apathetic broad-minded calm cool doubting happy indifferent lethargic tolerant unenthusiastic unexcited

WEAK

disinterested dispassionate impartial

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

To all but his most fanatical followers, it’s clear he possesses a megalomaniacal personality and violent temperament.

From Salon • Mar. 7, 2026

India captain Suryakumar Yadav admitted Friday "there will be nerves" when India open their T20 World Cup campaign in front of more than 30,000 fanatical home supporters in Mumbai, but vowed to give them "entertainment".

From Barron's • Feb. 6, 2026

Sando, the company’s 65-year-old owner and chief executive, was a fan of beans even before he was fanatical about them.

From The Wall Street Journal • Jan. 10, 2026

"He is a workaholic, fanatical and leads from the front. I guess that is why a lot of these younger players who are coming through are working so hard for him and having great success."

From BBC • Mar. 3, 2025

Mrs. Turner was almost screaming in fanatical earnestness by now.

From "Their Eyes Were Watching God" by Zora Neale Hurston

Vocabulary lists containing fanatical

"To Kill a Mockingbird" by Harper Lee, Chapters 7–11

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The Bean Trees

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"Simon's Saga," Vocabulary from Episode 34

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