au‧to‧mat‧i‧cally S3 W3 AC / ɔtəmætɪkli $ ɒ- / 副词

1 as the result of a situation or action, and without you having to do anything more :

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2 without thinking about what you are doing :

Of course I automatically said yes.

3 by the action of a machine, without a person making it work :

The doors opened automatically as we approached.