List of abrupt synonyms and abrupt related words.
aggressive, arduous, bearish, beastly, bluff, blunt, blunt-edged, blunt-ended, blunt-pointed, blunted, bluntish, bold, brash, breakneck, breathless, brief, brisk, brusque, casual, cavalier, churlish, crisp, crusty, curt, discourteous, dull, dull-edged, dull-pointed, dulled, dullish, edgeless, electrifying, faired, gruff, harsh, hasty, headlong, hurried, impetuous, impolite, impulsive, informal, nerve-shattering, obtuse, panting, perpendicular, plumb, plunging, pointless, precipitant, precipitate, precipitous, quick, rapid, rash, ready, rough, rounded, rude, rushing, severe, sharp, sheer, shocking, short, sideling, smoothed, snappish, snappy, snippety, snippy, speedy, startling, steep, stickle, sudden, surly, surprising, swift, truculent, unannounced, unanticipated, unceremonious, uncivil, unedged, unexpected, unforeseen, unlooked-for, unplanned, unpointed, unpredicted, unsharp, unsharpened, vertical