1. Unwisely talking too much
   - bigmouthed, blabbermouthed, talkative

See also: indiscreet

• aversive
• aversive conditioning
• aversive stimulus
• avert
• avertable
• avertible
• averting
• Aves
• Avesta
• Avestan
• avian
• avian influenza
• avianise
• avianize
• aviary
• aviate
• aviation
• aviation medicine
• aviator
• aviatress
• aviatrix
• Avicenna
• Avicennia
• Avicennia marina
• Avicennia officinalis