adv in a sick manner or condition; ill.
2. sickly ·superl appearing as if sick; weak; languid; pale.
3. sickly ·superl producing, or tending to, disease; as, a sickly autumn; a sickly climate.
4. sickly ·vt to make sick or sickly;
with over, and probably only in the past participle.
5. sickly ·superl somewhat sick; disposed to illness; attended with disease; as, a sickly body.
6. sickly ·superl tending to produce nausea; sickening; as, a sickly smell; sickly sentimentality.