1. Dark and gloomy
   - tenebrous, tenebrific

See also: dark

• beat down
• beat generation
• beat hollow
• beat in
• beat it
• beat out
• atrazine
• atremble
• atresia
• Atreus
• atrial
• atrial artery
• atrial auricle
• atrial fibrillation
• atrial septal defect
• Atrichornis
• Atrichornithidae
• atrioventricular
• atrioventricular block
• atrioventricular bundle
• atrioventricular nodal rhythm
• atrioventricular node
• atrioventricular trunk
• atrioventricular valve
• atrip