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adj. sick·li·er, sick·li·est
1. Prone to sickness.
2. Of, caused by, or associated with sickness: a sickly pallor.
3. Conducive to sickness: a sickly climate.
4. Causing nausea; nauseating.
5. Lacking vigor or strength; feeble or weak: a sickly handshake.
tr.v. sick·lied, sick·ly·ing, sick·lies
Archaic To make sickly.

sick′li·ness n.
sick′ly, sick′li·ly adv.
References in periodicals archive ?
And thus," says Hamlet, "the native hue of resolution / Is sicklied o'er with the pale cast of thought.