1) Acute 2) Ending in a sharp point 3) Having a sharp point 4) Needle-pointed 5) Needle-shaped 6) Needlelike 7) Piercing 8) Pointed 9) Sharp 10) Sharp-pointed 11) Sharpened 
• (v. t.) To sharpen; to make pungent; to quicken. • (a.) Sharpened; sharp-pointed.
Ac'u·ate adjective Sharpened; sharp- pointed. Ac'u·ate transitive verb [ Latin acus needle.] To sharpen; to make pungent; to quicken. [ Obsolete] '[ To] acuate the blood.' Harvey. 
[adj] - ending in a sharp point
acuate Needle shaped, sharp-pointed.
acute adjective ending in a sharp point
sharpened; pointed.