Synonyms for sickly Found 8 synonyms across 2 meanings for “sickly”. unhealthy looking (adj) sallow somewhat ill or prone to illness (adj) ailingindisposedpeaked(p)poorly(p)unwellseedy Explore Related Words Rhymes with sicklySynonyms for sallowSynonyms for ailingSynonyms for indisposedSynonyms for peaked(p)Synonyms for poorly(p) Synonym Finder | Rhyme Finder | Poetry Editor