1. lacking feathers or plumes; not having plumage
Usage: often used in ornithology or zoology to describe birds or animals without feathers
2. lacking ornamental plumes or decorative feathers
Usage: used to describe clothing, hats, or accessories without plume decoration

Examples

• The plumeless bird struggled to maintain its body temperature in the cold.
• She wore a simple, plumeless hat to the formal dinner.
• The chick remained plumeless for several weeks after hatching.
• A plumeless costume design gave the character a stark, modern appearance.
• The researcher studied plumeless mutations in the chicken population.
• The bride chose a plumeless headpiece for a minimalist wedding look.