mechanical

1 of 2

adjective

me·​chan·​i·​cal mi-ˈka-ni-kəl 

1

a(1)

: of or relating to machinery (see machinery sense 1) or tools

mechanical applications of science

a mechanical genius

mechanical aptitude

(2)

: produced or operated by a machine or tool

mechanical power

a mechanical refrigerator

a mechanical saw

b

: of or relating to manual operations

2

: of or relating to artisans (see artisan sense 1) or machinists

the mechanical trades

3

a

: done as if by machine : seemingly uninfluenced by the mind or emotions : automatic

busy in a leisurely mechanical way

—Douglas Stewart

b

: of or relating to technicalities or petty matters

nor was any capacity shown for anything above a mechanical handling of the matter

—H. O. Taylor

4

a

: relating to, governed by, or in accordance with the principles of mechanics

mechanical energy

b

: relating to the quantitative relations of force and matter

mechanical pressure of wind on a tower

5

: caused by, resulting from, or relating to a process that involves a purely physical as opposed to a chemical or biological change or process

mechanical erosion of rock

mechanically

mi-ˈka-ni-k(ə-)lē 

adverb

mechanical

2 of 2

noun

1

: a piece of finished copy consisting typically of type proofs and artwork positioned and mounted for photomechanical reproduction

2

obsolete : mechanic sense 1

Synonyms

Adjective

• automatic
• instinctive
• instinctual
• involuntary
• knee-jerk
• mechanic
• robotic
• spontaneous

Choose the Right Synonym for mechanical

spontaneous, impulsive, instinctive, automatic, mechanical mean acting or activated without deliberation.

spontaneous implies lack of prompting and connotes naturalness.

a spontaneous burst of applause

impulsive implies acting under stress of emotion or spirit of the moment.

impulsive acts of violence

instinctive stresses action involving neither judgment nor will.

blinking is an instinctive reaction

automatic implies action engaging neither the mind nor the emotions and connotes a predictable response.

his denial was automatic

mechanical stresses the lifeless, often perfunctory character of the response.

a mechanical teaching method

Examples of mechanical in a Sentence

Adjective

The flight was delayed because of mechanical problems.

I was impressed by her mechanical know-how.

She gave a mechanical reply.

Copying down the numbers is a boring and mechanical job.

The actor gave a stiff and mechanical performance.

Recent Examples on the Web

Adjective

When first announced in 2011, the Aston Martin Cygnet piqued global interest: a tiny sub 845kg (curb weight) hatchback with Aston mechanical gubbins. —Matthew MacConnell, Forbes, 28 Feb. 2025

All of this noise is most likely the result of the boards on your wooden frame rubbing together and causing chemical adhesives (such as glues) to break down and create more friction than usual, says Skyler Dalley, PhD, mechanical engineer at Equilateral Product Innovations. —Yelena Moroz Alpert, Architectural Digest, 27 Feb. 2025

Noun

The three-wheeler is underpinned by BMW mechanicals and boasts a frame and chassis—featuring center-hub steering—built by Louis Christen Racing of Switzerland. —Robert Ross, Robb Report, 15 Feb. 2025

These collectors have just as much love for the maze of mechanicals beneath the surface as the trajectories the silver ball follows. —Tim Stevens, Ars Technica, 6 Jan. 2025

Word History

First Known Use

Adjective

15th century, in the meaning defined at sense 1a(1)

Noun

1600, in the meaning defined at sense 2

Phrases Containing mechanical

• mechanical advantage
• mechanical drawing
• mechanical engineering
• mechanical pencil
• mechanical ventilation
• mechanical ventilator

Rhymes for mechanical

• botanical
• brahmanical
• tyrannical
• biomechanical
• thermomechanical
• electromechanical
• panicle
• puritanical

Kids Definition

mechanical

adjective

me·​chan·​i·​cal

mi-ˈkan-i-kəl

1

a

: of or relating to machinery

mechanical skill

b

: made or operated by a machine or machinery

a mechanical toy

2

: done as if by machine : impersonal

gave a mechanical reply

3

: relating to or according with the principles of mechanics

mechanically

-i-k(ə-)lē

adverb

Medical Definition

mechanical

adjective

me·​chan·​i·​cal mi-ˈkan-i-kəl 

1

: relating to the quantitative relations of force and matter

mechanical pressure exerted by the bubbles in the tissues

—H. G. Armstrong

2

: caused by, resulting from, or relating to physical as opposed to biological or chemical processes or change

mechanical injury

mechanical asphyxiation

mechanically

-i-k(ə-)lē 

adverb