1. Without a breast

Antonym: breasted

• black-tie
• black-winged stilt
• blackamoor
• blackback flounder
• blackball
• Blackbeard
• blackbeetle
• blackberry
• blackberry bush
• blackberry-lily
• blackbird
• blackboard
• blackboard eraser
• blackbody
• blackbody radiation
• blackbuck
• Blackburn
• Blackburnian warbler
• blackcap
• blackcap raspberry
• blackcock
• blackdamp
• bush nasturtium
• bush out
• bush pea