| Main Entry: | formidable |
| Part of Speech: | adjective |
| Definition: | horrible, terrifying |
Synonyms: |
appalling, awful, dangerous, daunting, dire, dismaying, dreadful, fearful, fierce, frightful, horrific, imposing, impregnable, intimidating, menacing, redoubtable, shocking, terrible, terrific, threatening |
Antonyms: |
feeble, friendly, harmless, nice, pleasant, powerless, weak |
| Main Entry: | formidable |
| Part of Speech: | adjective |
| Definition: | difficult, overwhelming |
Synonyms: |
all-powerful, arduous, awesome, ballbuster, challenging, colossal, dismaying, effortful, great, hard, impressive, indomitable, intimidating, labored, laborious, mammoth, mighty, murder*, onerous, overpowering, powerful, puissant, rough go, rough*, staggering, strenuous, tall order, toilsome, tough proposition, tough*, tremendous, uphill |
Antonyms: |
easy, not hard, pleasant, trivial |
| Main Entry: | ambitious |
| Part of Speech: | adjective |
| Definition: | requiring great effort, ability |
Synonyms: |
arduous, bold, challenging, demanding, difficult, elaborate, energetic, exacting, formidable, grandiose, hard, impressive, industrious, lofty, pretentious, severe, strenuous, visionary |
Antonyms: |
easy, facile |
| Main Entry: | appalling |
| Part of Speech: | adjective |
| Definition: | horrifying |
Synonyms: |
alarming, astounding, awful, bad, daunting, dire, disheartening, dismaying, dreadful, fearful, formidable, frightening, frightful, ghastly, grim, grody, gross*, harrowing, heavy*, hideous, horrible, horrid, horrific, intimidating, mean, petrifying, scaring, shocking, terrible, terrifying, the end, unnerving |
Antonyms: |
comforting, encouraging, reassuring, satisfying |
| Main Entry: | arduous |
| Part of Speech: | adjective |
| Definition: | difficult, hard to endure |
Synonyms: |
backbreaking, burdensome, exhausting, fatiguing, formidable, grueling, harsh, heavy, labored, laborious, murder, no picnic, onerous, painful, punishing, rigorous, rough, severe, strenuous, taxing, tiring, toilsome, tough, troublesome, trying, uphill |
Antonyms: |
easy, facile, motivating |
| Main Entry: | awesome |
| Part of Speech: | adjective |
| Definition: | amazing |
Synonyms: |
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 |
Antonyms: |
unamazing |
| Main Entry: | dangerous |
| Part of Speech: | adjective |
| Definition: | hazardous, troubling |
Synonyms: |
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 |
Antonyms: |
careful, guarded, safe, secure, unhazardous, untroubled |
| Main Entry: | difficult |
| Part of Speech: | adjective |
| Definition: | hard on someone; hard to do |
Synonyms: |
Gargantuan, Herculean, ambitious, arduous, backbreaker, bothersome, burdensome, challenging, crucial, demanding, difficile, easier said than done, effortful, exacting, formidable, galling, hard-won, heavy, immense, intricate, irritating, labored, laborious, no picnic, not easy, onerous, operose, painful, problem, problematic, prohibitive, rigid, severe, stiff, strenuous, titanic, toilsome, tough, troublesome, trying, unyielding, uphill, upstream, wearisome |
Antonyms: |
calm, easy, free, manageable, plain, simple, uncomplicated |
| Main Entry: | difficult |
| Part of Speech: | adjective |
| Definition: | complicated; hard to comprehend |
Synonyms: |
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 |
Antonyms: |
easy, simple, straightforward, uncomplicated |
| Main Entry: | dreadful |
| Part of Speech: | adjective |
| Definition: | horrible, frightening |
Synonyms: |
abominable, alarming, appalling, atrocious, awful, bad, beastly, creepy*, dire, distressing, fearful, formidable, frightful, frozen, ghastly, godawful, grievous, grim, grody, gross*, hideous, horrendous, horrific, icky, lousy, mean, monstrous, rotten, shameful, shocking, shuddersome, spooky, terrible, terrific, tragic, tremendous, wicked |
Antonyms: |
pleasant, pleasing, welcomed, wonderful |