Words from
sickly
    (of a flavor, smell, color, or light) so unpleasant as to induce discomfort or nausea.
    
    Source: Harry Potter Wiki
    
    Usage Example: A sickly green creature with sharp little horns.
    
  “Our language, one of our most precious natural resources, deserves at least as much protection as our woodlands, streams and whooping cranes.”- James Lipton