SELF-ACTING Synonyms: 18 Similar and Opposite Words

self-acting

adjective

ˌself-ˈak-tiŋ

Definition of self-acting

as in automated

designed to replace or decrease human labor and especially physical labor self-acting machines that were ushered in with the industrial revolution

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for self-acting

Adjective

Under automated generation, this debt can experience exponential growth as each new AI prompt builds upon the errors of previous iterations.

— Ihor Hamal, Forbes.com, 18 Aug. 2026
That feedback could allow automated equipment to adjust later processing steps using measurements from the fabrication process itself.

— Aamir Khollam, Interesting Engineering, 17 Aug. 2026

Definition of automated

Adjective

Teoscar Hernández led off the 10th with a single off Jimmy Herget (0-5) and Freddie Freeman's sacrifice fly scored automatic runner Andy Pages.

— ABC News, ABC News, 20 Aug. 2026
Beating at the core of the new models is the automatic Calibre 37-24, which offers up a flyback function that lets the wearer stop, reset, and restart the timepiece with just a press of the pusher.

— Nicole Hoey, Robb Report, 20 Aug. 2026

Definition of automatic

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Cite this Entry

Style

“Self-acting.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/self-acting. Accessed 24 Aug. 2026.

Copy Citation

Synonyms of self-acting

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

expeditious

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

How to Pronounce the Trickiest Menu Items

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

Words from the 'Odyssey'

The Longest Long Words List

Even More Words That Sound Like Insults But Aren't

The Words of the Week - Aug. 21

16 Glee-ridden Words from Schitt's Creek

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List

Games & Quizzes