<p><strong>Adjective:</strong></p><ul><li>not strong; unhealthy; ailing</li><li>connected with, or arising from ill health: a sickly complexion</li><li>marked by the prevalence of ill health, as a region: the epidemic left the town sickly</li><li>causing sickness; nauseating</li><li>maudlin and insipid; mawkish: sickly sentimentality</li><li>faint or feeble, as light or color</li></ul><p><strong>Adverb:</strong></p><ul><li>in a sick or sickly manner</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>sicklied, sicklying: to cover with a sickly hue</li></ul>