Definitions:

1. resembling the unthinking functioning of a machine adjective
   • an automatic `thank you'
2. without volition or conscious control adjective
   • the automatic shrinking of the pupils of the eye in strong light

Synonyms:

• automatic pistol
• automatic rifle
• automatonlike
• machine rifle
• machinelike
• reflex
• reflexive
• robotic
• robotlike

NearBy Words:

• automatically