noun sickness.
2. sick ·superl corrupted; imperfect; impaired; weakned.
3. sick ·vi to fall sick; to sicken.
4. sick ·superl having a strong dislike; disgusted; surfeited;
with of; as, to be sick of flattery.
5. sick ·superl affected with, or attended by, nausea; inclined to vomit; as, sick at the stomach; a sick headache.
6. sick ·superl affected with disease of any kind; ill; indisposed; not in health. ·see the synonym under illness.