acute

[1]	acute accent , ague

adj.

[1]	sharp , pointed , narrow
[2]	severe , intense , critical , crucial , dangerous , grave , serious , severe
[3]	sharp , intense , cutting , intense , severe , violent , penetrating , exquisite , excruciating , fierce , shooting , stabbing , piercing , sudden
[4]	keen , discriminating , incisive , sharp , sensitive , keen , knifelike , penetrating , penetrative , piercing , sharp
[5]	keen , sharp-witted , shrewd , clever , ingenious , astute , sharp , canny , incisive , discerning , perceptive , perspicacious , intelligent , penetrating , insightful , percipient , wise , sensitive , discriminating , alert , aware , on the qui vive
[6]	acuate , sharp , needlelike