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in operation

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effective adj.
operative adj.
practical adj.
running adj.

ADJECTIVE

effective

Synonyms

STRONGEST

active direct dynamic

WEAK

actual current in effect in execution in force operative real

Antonyms

STRONGEST

inactive

WEAK

fruitless impotent incapable ineffective inoperative unproductive useless weak

ADJECTIVE

operative

Synonyms

STRONGEST

operational usable

STRONG

current dynamic employable indicative key open running standing working

WEAK

accessible alive crucial effective efficient functional important in force live practicable relevant serviceable significant workable

Antonyms

STRONG

passive

WEAK

inactive ineffective ineffectual inoperative unfunctional unworking useless worthless

ADJECTIVE

practical

Synonyms

STRONGEST

businesslike constructive down-to-earth efficient factual feasible functional possible practicable pragmatic rational reasonable sane sensible sober workable

WEAK

applied both feet on the ground commonsensical doable empirical experimental handy hard-boiled implicit in action matter-of-fact nuts and bolts operative orderly serviceable solid sound systematic unidealistic unromantic usable utile utilitarian virtual workaday working

Antonyms

STRONGEST

excited impossible impractical inefficient irrational unattainable unfeasible unlikely unrealistic unreasonable unsound unworkable

WEAK

incapable inexperienced unproficient unseasoned unserviceable unskilled untrained useless worthless

ADJECTIVE

running

Synonyms

STRONGEST

constant functioning working

STRONG

active cursive dynamic executing going live moving operative proceeding producing smooth

WEAK

alive easy effortless fluent in action in succession incessant perpetual together unbroken unceasing uninterrupted

Antonyms

STRONG

apathetic immobile inactive unexciting

WEAK

broken discontinuous intermittent occasional

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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in operation

Texas has regulations favorable to autonomous vehicles, making it one of the preferred testing grounds for many such services already in operation, such as Waymo and Zoox, or in trials, such as Motional.

From Barron's ● Sep. 4, 2026

About 900 of the missing are workers from more than a dozen hydropower projects in operation or under construction, most of which appear to have been largely destroyed.

From The Wall Street Journal ● Aug. 30, 2026

SpaceX currently has just one launchpad in operation, with another four in various stages of construction.

From MarketWatch ● Aug. 27, 2026

Although the Nord Stream 1 pipeline was in operation at the time, Nord Stream 2 had yet to go into service.

From BBC ● Aug. 19, 2026

With a little rewiring and juggling of numbers, he soon had our instrument in operation.

From "The Hiding Place" by Corrie ten Boom

in operation

Example Sentences

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