Acute

adjective

1. characterized by sharpness or severity of sudden onset
2. of the variety indicated by an acute accent
3. marked by keen discernment or intellectual perception especially of subtle distinctions
4. responsive to slight impressions or stimuli
5. felt, perceived, or experienced intensely
6. demanding urgent attention
7. of rapid onset and relatively short duration
8. see also acute disease
9. being, providing, or requiring short-term medical care (as for acute disease or traumatic injury)
10. lasting a short time
11. ending in a sharp point: such as
12. being or forming an angle measuring less than 90 degrees
13. composed of acute angles
14. having the form ´of an accent mark
15. marked with an acute accent