automatic

American  

[aw-tuh-mat-ik] / ˌɔ təˈmæt ɪk /

adjective

1. having the capability of starting, operating, moving, etc., independently.

   an automatic sprinkler system; an automatic car wash.

2. Physiology. occurring independently of volition, as certain muscular actions; involuntary.

3. done unconsciously or from force of habit; mechanical.

   an automatic application of the brakes.

4. occurring spontaneously.

   automatic enthusiasm.

5. (of a firearm, pistol, etc.) utilizing the recoil or part of the force of the explosive to eject the spent cartridge shell, introduce a new cartridge, cock the arm, and fire it repeatedly.

---

noun

• automatics
  plural

1. a machine that operates automatically.

2. automatic rifle.

3. automatic pistol.

4. Football. audible.

5. automatic pilot.

6. automatic transmission.

7. an automobile equipped with automatic transmission.

idioms

1. on automatic, being operated or controlled by or as if by an automatic device.

automatic British  

/ ˌɔːtəˈmætɪk, ˌɔːtəʊməˈtɪsɪtɪ /

adjective

1. performed from force of habit or without conscious thought; lacking spontaneity; mechanical

   an automatic smile

2. 1. (of a device, mechanism, etc) able to activate, move, or regulate itself

   2. (of an act or process) performed by such automatic equipment

3. (of the action of a muscle, gland, etc) involuntary or reflex

4. occurring as a necessary consequence

   promotion is automatic after a year

5. 1. utilizing some of the force of or gas from each explosion to eject the empty shell case, replace it with a new one, and fire continuously until release of the trigger Compare semiautomatic

   2. short for semiautomatic See also machine

---

noun

1. an automatic firearm

2. a motor vehicle having automatic transmission

3. a machine that operates automatically

Synonym Usage

Automatic, involuntary, spontaneous all mean not under the control of the will. That which is automatic, however, is an invariable reaction to a fixed type of stimulus: The patella reflex is automatic. That which is involuntary is an unexpected response that varies according to the occasion, circumstances, mood, etc.: an involuntary cry of pain. That which is spontaneous arises from immediate stimuli and usually involves an expression of strong feeling: a spontaneous roar of laughter.

Other Word Forms

Derived Forms

• automaticity
  noun
• nonautomatic
  adjective
• quasi-automatic
  adjective
• subautomatic
  adjective
• unautomatic
  adjective
• automatically
  adverb
• nonautomatically
  adverb
• quasi-automatically
  adverb
• subautomatically
  adverb
• unautomatically
  adverb

Inflected Forms

Nouns

• automatics
  plural

Etymology

Origin of automatic

First recorded in 1740–50; from Greek autómat(os) “self-moving” ( see automaton) + -ic

Explanation

If someone asks, “How are you?” and you reply, “Fine,” without really thinking about it, that’s an automatic reply. Something that’s automatic is done without thinking, almost as if you’re a well-programmed machine. The word automatic can be used to describe a machine that works on its own, performing its tasks with little or no human intervention, such as an automatic transmission on a car. Or, automatic can describe a person whose actions are like a machine's. If you flash a smile every time someone walks through the door, it’s an automatic smile, a natural reaction you didn't think about or plan in advance.

Example Sentences

See Examples For:

automatic automatics

Lines at the tech-driven cafe move quickly thanks to automatic espresso machines that produce eight espresso shots at a time and up to 700 per hour.

From Los Angeles Times ● Aug. 21, 2026

As for kicking, Cameron Dicker is typically automatic on extra points, but he missed one after linebacker Junior Colson scored on an interception return in the third quarter.

From Los Angeles Times ● Aug. 21, 2026

In fact, it says, 83% of 529 plan users make automatic contributions.

From MarketWatch ● Aug. 20, 2026

Gray said the proposed change in the automatic release point would help reintegrate prisoners into society.

From BBC ● Aug. 13, 2026

A page of Isaac Post’s automatic spirit writing.

From "American Spirits" by Barb Rosenstock

It is a decision that could affect the rest of their driving lives - pass your test in an automatic and you will forever be boxed into only driving automatics - or indeed electric vehicles.

From BBC ● Oct. 24, 2025

Persaud says many of his students hope to rent a car overseas, where automatics are sometimes harder to come by, or have significant others who own stick shifts but lack “the patience to teach them.”

From The Wall Street Journal ● Oct. 8, 2025

However, the delay doesn’t change the outcome: The CFP will shift the access format from six automatic qualifiers and six at-large bids to five automatics and seven at-larges.

From Seattle Times ● Jan. 16, 2024

Nearly all American rental cars are automatics, yet abroad, you will probably receive a car with a stick shift or pay more for the transmission you’re used to.

From Washington Post ● Sep. 16, 2021

He continued the turn in the direction the automatics had started, bringing his nose around to watch the enemy's track.

From Slingshot by Irving W. Lande

Related Words

• automated
• electric
• electronic
• mechanical