I had an acute pain in my left shoulder.
That is an acute angle. An obtuse angle is not acute.
He's acute little freak in the bed!
Example sentence - The actions of his horrid children caused acute chronic pain for all involved.
The acute angle looked like a sharp spike.
His acute sense of hearing was quite keen.
any angle less than 90* is acute
An angle that is less than 90º is acute.
The patient experienced an acute pain in their chest, prompting the medical team to take immediate action.
The acute child wanted to become a detective because of his skills.
My sore throat started very quickly, and the doctor diagnosed me with acute tonsilitis.
It was an acute hardship to go camping in a cabin with no running water or electricity.
Mazie has an acute sense of injustice; whenever she perceives it, she must speak out.