(of a machine, device, etc.) having controls that work without needing a person to operate them
done or happening without thinking
always happening as a result of a particular action or situation
a machine or apparatus, such as a gun, that operates automatically; an automatic weapon
a car with a system of gears that operates without direct action from the driver
"a budget deficit that caused automatic spending cuts"
"an automatic `thank you'"
"the automatic shrinking of the pupils of the eye in strong light"
"a reflex knee jerk"
"sneezing is reflexive"
The winking of the eyes is essentially automatic.
出自： A. Bain
I tossed my headsit is an automatic gesture I cannot helpsand went forward again.
出自： J. Masters
A natural system..under which the demands of the younger are not given automatic priority over the rights of the older.
出自： Day Lewis
The invitation was compulsive and automatic, it sprang from old habit merely.
出自： C. Jackson
As a batsman, he would have been an automatic choice for any Test team of any period.
出自： T. Bailey
Approximately a quarter of narcoleptics have frequent periods of automatic behaviour in the daytime when they are only half-awake.