fearsome

adjective

fear·​some ˈfir-səm 

1

a

: causing fear

a fearsome monster

b

: intense, extreme

fearsome determination

2

: timid, timorous

fearsomely adverb

fearsomeness noun

Synonyms

• alarming
• dire
• direful
• dread
• dreadful
• fearful
• forbidding
• formidable
• frightening
• frightful
• ghastly
• hair-raising
• horrendous
• horrible
• horrifying
• intimidating
• redoubtable
• scary
• shocking
• spine-chilling
• terrible
• terrifying

Examples of fearsome in a Sentence

at night the child would always imagine that there were fearsome monsters lurking under his bed

after working all afternoon in the hot sun, I had developed a fearsome thirst

Recent Examples on the Web

Even Sam Star’s mother, a deeply southern woman who has a fearsome dedication to her child, is a revolutionary figure right now. —Jason P. Frank, Vulture, 28 Mar. 2025

Skubal was their ace on the mound, their most fearsome asset facing a collection of the best hitters in the world. —Cody Stavenhagen, New York Times, 28 Mar. 2025

And that longer length isn't just a fun fact about the fearsome creatures. —Karissa Waddick, USA TODAY, 10 Mar. 2025

Analyzing the legendary unicorn tapestries hanging at the Met Cloisters in New York (augmented here by a gory new panel that depicts the suddenly fearsome animals disemboweling and impaling their aggressors), Ridley concludes that unicorns aren’t nearly as benevolent as most people think. —Peter Debruge, Variety, 9 Mar. 2025

Word History

Etymology

fear entry 1 + -some entry 1

First Known Use

1768, in the meaning defined at sense 1a

Kids Definition

fearsome

adjective

fear·​some ˈfi(ə)r-səm 

1

: causing fear

2

: timid

fearsomely adverb

fearsomeness noun