COMPLICATED Synonyms: 120 Similar and Opposite Words

Q: How does the adjective 'complicated' differ from other similar words?

Some common synonyms of complicated are complex , intricate , involved , and knotty . While all these words mean "having confusingly interrelated parts," complicated applies to what offers great difficulty in understanding, solving, or explaining. // complicated legal procedures

Q: When might 'complex' be a better fit than 'complicated'?

The words complex and complicated can be used in similar contexts, but complex suggests the unavoidable result of a necessary combining and does not imply a fault or failure. // a complex recipe

Q: When would 'intricate' be a good substitute for 'complicated'?

The synonyms intricate and complicated are sometimes interchangeable, but intricate suggests such interlacing of parts as to make it nearly impossible to follow or grasp them separately. // an intricate web of deceit

Q: When is it sensible to use 'involved' instead of 'complicated'?

The words involved and complicated are synonyms, but do differ in nuance. Specifically, involved implies extreme complication and often disorder. // a rambling, involved explanation

Q: When is 'knotty' a more appropriate choice than 'complicated'?

Although the words knotty and complicated have much in common, knotty suggests complication and entanglement that make solution or understanding improbable. // knotty ethical questions

complicated 1 of 2

adjective

ˈkäm-plə-ˌkā-təd

Definition of complicated

as in complicate

having many parts or aspects that are usually interrelated a complicated apparatus

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in detailed

made or done with great care or with much detail complicated plans for redeveloping the riverfront that involve both the private and public sectors

Synonyms & Similar Words

Antonyms & Near Antonyms

complicated

2 of 2

verb

past tense of complicate

as in sophisticated

to make complex or difficult the need to go to both a PTA conference and condo board meeting really complicates tonight's schedule

Synonyms & Similar Words

Antonyms & Near Antonyms

as in aggravated

to make more severe asthma that has recently been complicated by a bout of bronchitis

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How does the adjective complicated differ from other similar words?

Some common synonyms of complicated are complex, intricate, involved, and knotty. While all these words mean "having confusingly interrelated parts," complicated applies to what offers great difficulty in understanding, solving, or explaining.

complicated legal procedures

When might complex be a better fit than complicated?

The words complex and complicated can be used in similar contexts, but complex suggests the unavoidable result of a necessary combining and does not imply a fault or failure.

a complex recipe

When would intricate be a good substitute for complicated?

The synonyms intricate and complicated are sometimes interchangeable, but intricate suggests such interlacing of parts as to make it nearly impossible to follow or grasp them separately.

an intricate web of deceit

When is it sensible to use involved instead of complicated?

The words involved and complicated are synonyms, but do differ in nuance. Specifically, involved implies extreme complication and often disorder.

a rambling, involved explanation

When is knotty a more appropriate choice than complicated?

Although the words knotty and complicated have much in common, knotty suggests complication and entanglement that make solution or understanding improbable.

knotty ethical questions

Example Sentences

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.

Recent Examples of complicated

Adjective

The deeper question of what multiple heads and arms mean, however, is much more complicated. — Charles Preston, Encyclopedia Britannica, 28 Aug. 2026 Fears of further flooding complicated recovery efforts, as authorities searched for people missing after floods struck the Himalayan border between Nepal and China. — Aoife Walsh, Washington Post, 28 Aug. 2026

Verb

Beijing — Already harrowing rescue efforts along the China-Nepal border are being complicated by the risk of new flooding or landslides, with authorities in China and Nepal pausing rescue efforts Friday due to those fears. — Simone McCarthy, CNN Money, 28 Aug. 2026 Final Thoughts NexSnap is a reminder that taking screenshots needn't be complicated, and that a screen-capture utility should offer more than just the ability to tap PrtScn. — Jordan Minor, PC Magazine, 28 Aug. 2026 See All Example Sentences for complicated

Recent Examples of Synonyms for complicated

Adjective

The company very deliberately targets large enterprise customers, which have the biggest and most complicate supply chain ecosystems.

— David Prosser, Forbes.com, 29 July 2026
Wilcox noted that overlaps between substance use and suicide complicate reduction efforts.

— Danielle J. Brown, Baltimore Sun, 10 June 2026

Definition of complicate

Adjective

There are no surprises, only faithful responses to the driver’s inputs and an abundance of detailed feedback.

— Bradley Iger, ArsTechnica, 26 Aug. 2026
To get a better understanding of who this individual was, researchers have spent the past few years conducting a detailed analysis of the remains’ DNA and isotopes, and the chemical properties of the metallic artefacts and the decorative band.

— Mike McRae August 25, New Atlas, 26 Aug. 2026

Definition of detailed

Verb

The policy challenge isn’t about choosing between security and openness, but rather designing policies sophisticated enough to achieve both.

— John A. Quelch, Fortune, 18 Aug. 2026
Much like self-driving cars on Earth, Perseverance has sophisticated onboard cameras that image the surrounding terrain, and these images are then processed algorithmically by an onboard computer to calculate the safest route.

— Eric Berger, ArsTechnica, 8 Aug. 2026

Definition of sophisticated

Adjective

The intricate leather cutouts appear across the strap across the toes and on the straps that wrap around the back of the foot.

— Karla Rodriguez, Footwear News, 26 Aug. 2026
As with software, the features that optimize for agents differ significantly from the intricate features of modern internet sites built for human use.

— George C. Lee II, Fortune, 26 Aug. 2026

Definition of intricate

Adjective

The approach does not automatically establish the exact cause of every settlement anomaly, and underground conditions can be complex.

— Rupendra Brahambhatt, Interesting Engineering, 29 Aug. 2026
To create objects with collapsibility as a core feature, Toyonaga’s team devised an analytic design algorithm allowing incremental construction of complex scissored surfaces.

— New Atlas, New Atlas, 29 Aug. 2026

Definition of complex

Verb

The intervention of Allied troops on the White Russian side in the Russian Civil War deepened Bolshevik paranoia, and Bolshevik leaders concluded that hostile powers would always seek to destroy Russia by cultivating internal enemies.

— Andrei Soldatov, Foreign Affairs, 31 Aug. 2026
Israel and Greece have deepened defense ties in the last decade.

— Sam Mednick, Los Angeles Times, 31 Aug. 2026

Definition of deepened

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“Complicated.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/complicated. Accessed 1 Sep. 2026.

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Synonyms of complicated

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Synonyms of complicated

adjective

verb

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A Brief History of 'Complicit'

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