1. superlative form of sickly; most unhealthy in appearance or most weak and frail
Usage: superlative form
2. superlative form of sickly; most nauseating or disgusting
Usage: superlative form

Examples

• Of all the patients in the ward, he looked the sickliest.
• The sickliest plant in the garden finally died despite our efforts.
• She had the sickliest complexion I’d ever seen.
• The sickliest smell came from the garbage bin.
• Among all the kittens, the runt was the sickliest one.
• The sickliest green color made everyone feel queasy.