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in operation

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.

The longest commercial flight currently in operation is a Singapore Airlines flight from Singapore to New York, which covers 15,350 kilometres in over 18 hours.

From Barron's • Jun. 2, 2026

After nearly 50 years in operation, available power has become extremely limited.

From Science Daily • May 4, 2026

Two of the refineries that closed were British, leaving just four in operation here.

From BBC • May 3, 2026

The project has been gradually commercializing its wind turbines since 4Q last year, with all 64 turbines expected to be in operation by 4Q 2026.

From The Wall Street Journal • Apr. 24, 2026

The new scheme must have been already in operation.

From "The Golden Goblet" by Eloise Jarvis McGraw

in operation

Example Sentences

Related Words