automatic

automatic — adjective

1. Used to describe a machine, door, or system that runs by itself, so a person doe

1.形容詞B2
釋義

Used to describe a machine, door, or system that runs by itself, so a person does not have to start each step or push buttons all the time.

例句

The supermarket has automatic doors that slide open as Dilnoza walks toward them.

automatic + noun (door)

Eitan's new washing machine is fully automatic, so he just chooses a program and presses start.

fully automatic

同義詞
  • self-operating

    more technical; common in product descriptions

  • mechanized

    stresses that a task once done by hand is now done by machines

  • self-acting

    formal, often in engineering contexts

反義詞
  • manual

    the most common opposite — needs a person to operate it

文法句型

automatic + noun (machine, door, system)

用法筆記

Almost always sits before a noun (attributive). When the subject is the device itself, prefer 'is automatic' rather than describing the action.

常見錯誤

The door opens automatic.
The door opens automatically.
💡use the adverb 'automatically' to modify a verb; 'automatic' only modifies a noun.

2. Used only of a car, gearbox, or transmission whose gears shift by themselves whi

2.形容詞B2
釋義

Used only of a car, gearbox, or transmission whose gears shift by themselves while you drive, so you never push a clutch pedal or move a gear stick. Unlike sense 1 (any self-running machine), this sense is restricted to vehicles and is the everyday opposite of 'manual'.

例句

Mateo passed his driving test in an automatic car last summer.

automatic car

Most rental cars at Los Angeles airport come with an automatic gearbox as standard.

automatic gearbox

同義詞
反義詞
  • manual

    the driver changes gears with a clutch and gear stick

文法句型

automatic + noun (car, gearbox, transmission)

用法筆記

Distinguish from sense 1 (any self-operating device): this sense is restricted to vehicles, gearboxes, and transmissions. Often contrasted with 'manual'.

常見錯誤

I drive an automatic gear.
I drive an automatic car.' or 'My car has an automatic gearbox.
💡'gear' alone does not collocate; use 'gearbox' or 'transmission'.

3. If a reaction or movement is automatic, you do it instantly without choosing to

3.形容詞C1
釋義

If a reaction or movement is automatic, you do it instantly without choosing to or even noticing, often because of habit, training, or a body reflex.

例句

When Hannah saw her niece grin in the stroller, smiling back was almost automatic.

almost automatic

After ten years driving a taxi in Taipei, checking the side mirror has become automatic for Zane.

become automatic

同義詞
  • instinctive

    felt deep inside, with no thought needed

  • involuntary

    stresses that you cannot stop the action, often a body reflex

  • reflex

    very fast, body-driven; usually about a physical reaction

反義詞

文法句型

automatic + noun (response, reaction, reflex)

用法筆記

Frequently negative in tone when describing speech or emotion (e.g. an 'automatic apology' suggests it is empty). Distinguish from sense 1 (a machine): here the subject is a person's action, reaction, or feeling.

常見錯誤

I gave an automatic to her question.
I gave an automatic answer to her question.
💡'automatic' is an adjective and needs a noun after it.

4. An automatic result, right, or punishment is one that always follows when a cert

4.形容詞C1
釋義

An automatic result, right, or punishment is one that always follows when a certain rule applies, with no extra decision or special request needed.

例句

Gold members of the jazz club get an automatic 20% discount on every concert ticket.

automatic + noun (discount)

In Singapore, driving without a licence carries an automatic fine of two thousand dollars.

automatic fine / penalty

同義詞
反義詞

文法句型

automatic + noun (right, entitlement, increase)

用法筆記

The result must follow strictly from a rule, contract, or normal procedure — not from luck or from someone choosing to grant it. Common with words like right, fine, place, increase, qualification.

常見錯誤

It is automatic that the manager will promote her.
Her promotion is automatic under the new contract.
💡use 'automatic' for outcomes set by a rule, not for what you guess will happen.

5. Used only of guns: one squeeze of the trigger releases a continuous stream of bu

5.形容詞C1
釋義

Used only of guns: one squeeze of the trigger releases a continuous stream of bullets until the shooter lets go or the magazine empties. Unlike sense 1 (any self-running device), this sense is restricted to firearms and contrasts with semi-automatic (one bullet per trigger pull) and single-shot weapons.

例句

Soldiers were carrying automatic rifles as they walked through the village.

automatic rifle

In Japan, owning an automatic weapon at home can lead to several years in prison.

automatic weapon

同義詞
反義詞

文法句型

automatic + noun (rifle, weapon, pistol)

用法筆記

Used with 'rifle', 'weapon', 'pistol', 'gun'. The related noun (sense noun/2) refers to the gun itself.

automatic — noun