Sweatiest

adjective

1. Covered in sweat.

   "John felt better after changing out of his sweaty clothes."

2. Having a tendency to sweat.

   "She had never met someone so sweaty."

3. Likely to cause one to sweat.

   "It was a hot and sweaty day."

4. Caused by sweat.

   "That sweaty odour is disgusting."

5. Strenuous; laborious; exhausting.

   "He resented being asked to do such a sweaty task."