sharp

adj

1. thin-edged, razor-edged, knife-like; keen, acute, pointed, needle-sharp, edged, cutting, thin; sharp as a bayonet, sharp as a butcher knife.

2. pointed, toothed, dentiform, barbed, cusped, cuspidate, cuspidal; peaked, Bot. apiculate, Bot., Zool. acuminate; bristly, prickly, echinate, setaceous, spiculate; thorny, spinous; craggy, jagged, angular; notched, serrate; spear-shaped, sword-shaped, Anat. Zool. xiphoid, sagittate; tapering, Bot., Zool. subulate.

3. abrupt, sudden, rapid; steep, sheer, extreme, ac-clivitous, vertical, precipitous; stiff, arduous.

4.(of taste) pungent, biting, bitter, acid, acrid; keen, acute.

5.(of noise) piercing, shrill, strident, harsh; high-pitched, high-toned, ear-splitting.

6.(of pain) distressing, cutting, intense, acute, piercing, fierce, extreme; sudden, violent, crucial, critical, severe.

7. bitter, harsh, caustic, cutting, scathing; lashing, virulent, rancorous, galling, acrid, acrimonious; derisory, insulting, excoriating, invidious, mocking, satirical; merciless, brutal, cruel, unkind, hurtful, malicious, spiteful, malignant, mean, venomous, envenomed; curt, brusque, tart, blunt, gruff, abrupt, bearish; ungracious, uncordial, uncivil, discourteous, impolite, unmannerly, rude.

8. eager, ardent, earnest, perfervid, fervent, zealous, feverish; high-mettled, vehement, animated, spirited, active; ambitious, aspiring, diligent, enterprising, sedulous, unfaltering.

9. alert, vigilant. See sharp-sighted.

10. shrewd, intelligent, smart. See sharp-witted.

adv

11. keenly, acutely, vividly.

12. abruptly, suddenly, unexpectedly, all of a sudden, at once, on the spur of the moment, without warning.

13. punctually, on time; on the dot, on the nose.

14. vigilantly, watchfully, carefully.

15. briskly, quickly, swiftly, speedily, hastily, hurriedly, rapidly, fast.