n. 25B6; adjective
automatic garage doors : MECHANIZED, mechanical, automated, computerized, electronic, robotic; self-activating.
an automatic reaction : INSTINCTIVE, involuntary, unconscious, reflex, knee-jerk, instinctual, subconscious; spontaneous, impulsive, unthinking; mechanical; informal gut.
he is the automatic choice for the team : INEVITABLE, unavoidable, inescapable, mandatory, compulsory; certain, definite, undoubted, assured.
manual, deliberate.