1. In an overbearingly domineering manner; as a dictator
   - dictatorially, autocratically, bossily 
2. In an authoritative and magisterial manner
   - authoritatively

See also: magisterial

• genus Acinos
• genus Acipenser
• genus Acocanthera
• genus Acokanthera
• genus Aconitum
• genus Acorus
• genus Acridotheres
• genus Acris
• genus Acrobates
• genus Acrocarpus
• genus Acrocephalus
• genus Acroclinium
• genus Acrocomia
• genus Acropora
• genus Acrostichum
• genus Actaea
• genus Actias
• genus Actinia
• genus Actinidia
• genus Actiniopteris
• genus Actinomeris
• genus Actinomyces
• genus Actitis
• genus Adalia
• genus Adansonia