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Synonyms for formidable
adj horrible, terrifyingAntonyms for formidable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
More words related to formidable
ambitious
adjective. requiring great effort, ability
appalling
adjective. horrifying
awesome
adjective. amazing
- alarming
- astonishing
- awe-inspiring
- awful
- beautiful
- breathtaking
- daunting
- dreadful
- exalted
- fearful
- fearsome
- formidable
- frantic
- frightening
- grand
- hairy
- horrible
- horrifying
- imposing
- impressive
- intimidating
- magnificent
- majestic
- mean
- mind-blowing
- moving
- nervous
- overwhelming
- real gone
- shocking
- something else
- striking
- stunning
- stupefying
- terrible
- terrifying
- wonderful
- wondrous
- zero cool
dangerous
adjective. hazardous, troubling
- alarming
- bad
- breakneck
- chancy
- critical
- dangersome
- deadly
- delicate
- dynamite
- exposed
- fatal
- formidable
- hairy
- heavy
- hot
- impending
- impregnable
- insecure
- jeopardous
- loaded
- malignant
- menacing
- mortal
- nasty
- on collision course
- parlous
- perilous
- portentous
- precarious
- pressing
- queasy
- risky
- serious
- serpentine
- shaky
- speculative
- terrible
- thorny
- threatening
- ticklish
- touch-and-go
- touchy
- treacherous
- ugly
- unhealthy
- unsafe
- unstable
- urgent
- viperous
- vulnerable
- wicked
difficult
adjective. complicated; hard to comprehend
- abstract
- abstruse
- baffling
- bewildering
- complex
- confounding
- confusing
- dark
- deep
- delicate
- enigmatic
- enigmatical
- entangled
- esoteric
- formidable
- hard to explain
- hard to solve
- hidden
- inexplicable
- intricate
- involved
- knotty
- labyrinthine
- loose
- meandering
- mysterious
- mystical
- mystifying
- nice
- obscure
- obstinate
- paradoxical
- perplexing
- problematical
- profound
- puzzling
- rambling
- subtle
- tangled
- thorny
- ticklish
- troublesome
- unclear
- unfathomable
- unintelligible
- vexing
dreadful
adjective. horrible, frightening
feared
adjective. worrisome
fearful
adjective. horrifying
- appalling
- astounding
- atrocious
- awful
- baleful
- bloodcurdling
- creepy
- dire
- distressing
- dreadful
- eerie
- formidable
- frightful
- ghastly
- ghoulish
- grievous
- grim
- grisly
- gruesome
- hair-raising
- hideous
- horrendous
- horrible
- horrific
- lurid
- macabre
- monstrous
- morbid
- overwhelming
- redoubtable
- shocking
- shuddersome
- sinister
- strange
- sublime
- terrible
- tremendous
- unearthly
- unspeakable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.