| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | menacing, ominous |
| Synonyms: | aggressive, alarming, apocalyptic, at hand, baleful, baneful, black, bullying, cautionary, close, comminatory, dangerous, dire, fateful, forthcoming, grim, ill-boding, imminent, impendent, impending, inauspicious, intimidatory, looming, loury, lowering, lowery, minacious, minatory, near, overhanging, portending, portentous, scowling, sinister, terrorizing, ugly, unlucky, unpropitious, unsafe, upcoming, warning |
| Antonyms: | nice, pleasant |
| Main Entry: | threaten |
| Part of Speech: | verb |
| Definition: | endanger |
| Synonyms: | advance, approach, be dangerous, be gathering, be imminent, be in the air, be in the offing, be on the horizon, brewing, come on, forebode, foreshadow, frighten, hang over, impend, imperil, jeopardize, loom, overhang, portend, presage, put at risk, put in jeopardy, warn |
| Antonyms: | guard, protect, save |
| Main Entry: | aggressive |
| Part of Speech: | adjective |
| Definition: | belligerent, hostile |
| Synonyms: | advancing, antipathetic, assailing, attacking, barbaric, bellicose, combative, contentious, destructive, disruptive, disturbing, encroaching, hawkish, intruding, intrusive, invading, martial, militant, offensive, pugnacious, quarrelsome, rapacious, threatening, warlike |
| Antonyms: | calm, easy-going, laid-back |
| Main Entry: | baleful |
| Part of Speech: | adjective |
| Definition: | menacing |
| Synonyms: | calamitous, deadly, dire, evil, foreboding, harmful, hurtful, injurious, malevolent, malignant, noxious, ominous, pernicious, ruinous, sinister, threatening, venomous, vindictive, woeful |
| Notes: | something is baleful that intends or portends harm or injury; something is baneful that produces harm or injury - thus, a glance may be baleful, an herb or poison baneful |
| Antonyms: | advantageous, auspicious, favorable, good, helping, promising |
| Main Entry: | black |
| Part of Speech: | adjective |
| Definition: | hopeless |
| Synonyms: | atrocious, bleak, depressing, depressive, dismal, dispiriting, distressing, doleful, dreary, foreboding, funereal, gloomy, horrible, lugubrious, mournful, ominous, oppressive, sad, sinister, sombre, threatening |
| Antonyms: | hopeful, optimistic |
| Main Entry: | black |
| Part of Speech: | adjective |
| Definition: | angry |
| Synonyms: | enraged, fierce, furious, hostile, menacing, resentful, sour, sullen, threatening |
| Antonyms: | happy |
| Main Entry: | coercion |
| Part of Speech: | noun |
| Definition: | compulsion, pressure |
| Synonyms: | browbeating, bullying, constraint, duress, force, intimidation, menace, menacing, persuasion, restraint, strong-arm tactic, threat, threatening, violence |
| Main Entry: | creepy |
| Part of Speech: | adjective |
| Definition: | nasty, scary |
| Synonyms: | awful, direful, disgusting, disturbing, dreadful, eerie, frightening, ghoulish, gruesome, hair-raising, horrible, itching, itchy, macabre, menacing, nightmarish, ominous, shuddersome, sinister, terrifying, threatening, unpleasant, weird |
| Antonyms: | good, nice, normal, pleasant, pleasing, unscary |
| 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 |