fearful
Americanadjective
-
causing or apt to cause fear; frightening.
a fearful apparition.
-
feeling fear, dread, apprehension, or solicitude.
fearful for his life.
- Synonyms:
- worried, concerned, anxious, solicitous, distrustful, uneasy, apprehensive, timorous, timid, afraid
-
full of awe or reverence.
fearful of the Lord.
-
showing or caused by fear.
fearful behavior exhibited by dogs in the animal shelter.
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extreme in size, intensity, or badness: fearful poverty.
a fearful head cold;
fearful poverty.
adjective
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having fear; afraid
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causing fear; frightening
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informal very unpleasant or annoying
a fearful cold
Other Word Forms
Etymology
Origin of fearful
First recorded in 1300–50; Middle English ferful(l); see origin at fear, -ful
Explanation
If you're fearful, you're afraid of something. A kid who's fearful around dogs might cry or run away when sees even a small puppy. To be fearful is, literally, to be full of fear. You can also use this adjective to describe the thing that scares you: "I lay awake all night listening to the fearful creaks of the old house around me." Some people are always fearful — it's just part of who they are — while others are only fearful in certain instances. You might be fearful on airplanes but fearless when riding a horse.
Vocabulary lists containing fearful
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.
While executives may not be acknowledging the potential problems posed by AI, Americans are growing increasingly fearful.
From MarketWatch ● Aug. 26, 2026
The case has made seafarers fearful of being "stuck in the middle" of a tug-of-war between rival powers, said Steve Yandell, coordinator of the seafarers' section of the International Transport Workers' Federation.
From Barron's ● Aug. 21, 2026
My undergrads are rightly fearful about the climate crisis but working in community to find their way.
From Los Angeles Times ● Aug. 15, 2026
Are you fearful of the future for generations to come?
From The Wall Street Journal ● Aug. 6, 2026
“Don’t talk such nonsense,” Mami said, but she gave me a fearful look.
From "When I Was Puerto Rican" by Esmeralda Santiago
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
