1
as in complicated
having many parts or aspects that are usually interrelated
this medical device is a complex instrument that requires careful handling complex issues regarding free speech and school discipline
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in intricate
made or done with great care or with much detail
a complex plan for evacuating the city in the event of a natural disaster
Synonyms & Similar Words
Antonyms & Near Antonyms
1
as in facility
a structure that is designed and built for a particular purpose
an apartment complex
Synonyms & Similar Words
2
as in system
something made up of many interdependent or related parts
a complex of government programs designed to assist the needy
Synonyms & Similar Words
as in to complicate
to make complex or difficult
there's no need to complex what should be a simple process for obtaining a building permit
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of complex
Erik Pedersen, Deadline, 5 Nov. 2025
The extremely complex movement incorporates a special ruby duplex escapement and unites grande and petite sonnerie, alarm, and calendar functions.
—Rachel Cormack, Robb Report, 5 Nov. 2025
Toria Sheffield, PEOPLE, 10 Nov. 2025
The apartment complex located near West 12th Street and Fair Park Boulevard is made up of three components, which officials refer to as Madison Heights I, II and III.
—Joseph Flaherty, Arkansas Online, 10 Nov. 2025
See All Example Sentences for complex
Adjective
All come together in a swirl of complex family dynamics.
—Erik Pedersen, Deadline, 5 Nov. 2025
The extremely complex movement incorporates a special ruby duplex escapement and unites grande and petite sonnerie, alarm, and calendar functions.
—Rachel Cormack, Robb Report, 5 Nov. 2025
Noun
Warner Castillo said A landlord in Los Angeles allegedly shot and killed a naked intruder in an apartment complex after the intruder broke both of his legs.
—Toria Sheffield, PEOPLE, 10 Nov. 2025
The apartment complex located near West 12th Street and Fair Park Boulevard is made up of three components, which officials refer to as Madison Heights I, II and III.
—Joseph Flaherty, Arkansas Online, 10 Nov. 2025
See All Example Sentences for complex
Recent Examples of Synonyms for complex
Adjective
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The flare suggests there are unknown populations of giant stars near the centers of large galaxies, which also host supermassive black holes — and sheds light on the complicated interactions between two behemoths.—
Ashley Strickland,
CNN Money,
7 Nov. 2025
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What unites them is Dern’s ability to find the humanity in characters navigating life’s most complicated terrain.—
Clayton Davis,
Variety,
7 Nov. 2025
Adjective
-
Visharukh’s shrine to Khan is just one thread in an intricate tapestry of fandom.—
Rhea Mogul,
CNN Money,
9 Nov. 2025
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Handmade in Japan, Akoni styles often feature titanium, plus proprietary hinges, screws, side shields, and adjustable temples that echo the intricate inner workings of timepieces.—
Naomi Rougeau,
Robb Report,
9 Nov. 2025
Noun
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Jacksonville can count on several military facilities, including naval stations and a submarine base, and Washington is, of course, home to the Pentagon.—
Giulia Carbonaro,
MSNBC Newsweek,
6 Nov. 2025
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Information technology company Provalus has selected Harrison as the location for its newest facility.—
Arkansas Democrat-Gazette,
Arkansas Online,
6 Nov. 2025
Noun
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There is no dignity, and no justice, in a system that buries an elderly woman alive in silence.—
Kim Aris,
Time,
7 Nov. 2025
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Since the advent of the transfer portal and the rise of name, image and likeness (NIL), there have been countless debates about how to create and adjust a system to establish guardrails when necessary.—
Chantz Martin,
FOXNews.com,
7 Nov. 2025
Verb
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But the Supreme Court ruling and ongoing redistricting measures may complicate the political landscape even further.—
Mandy Taheri,
MSNBC Newsweek,
6 Nov. 2025
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The aftermath of a ruling against him also could be complicated, if the government must issue refunds for the tariffs that had collected $195 billion in revenue as of September.—
Sydney Lake,
Fortune,
5 Nov. 2025
Adjective
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China launches its largest naval aircraft carrier China’s largest and most sophisticated aircraft carrier entered active service, the latest sign of Beijing’s growing naval might.—
Brendan Ruberry,
semafor.com,
10 Nov. 2025
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When in doubt, cozy gifts are also a no-brainer option, from Olivia von Halle’s silky-and-sophisticated pajamas to the pricey yet worth-it Matteo Robe from Matouk.—
Footwear News,
Footwear News,
10 Nov. 2025
Adjective
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The Associated Press learned the identities of four of the men - and pieced together details about at least five others - who were slain, providing the first detailed account of those who died in the strikes.—
NPR,
NPR,
8 Nov. 2025
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His views of their unconventional garments are painterly and romantic—expressionist evocations rather than detailed transcriptions of the clothes.—
Vince Aletti,
New Yorker,
8 Nov. 2025
Noun
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Sure, Johnson’s physics-defying mid-air adjustment shows up in college football highlight supercuts, but the networks that run the sport today rarely dig up the footage from the late, great Jefferson Pilot Sports to educate the next generation.—
The Athletic College Football Staff,
New York Times,
9 Nov. 2025
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Meanwhile, French company Eutelsat is also building its own alternative low-orbit satellite network.—
PC Magazine,
PC Magazine,
9 Nov. 2025
Cite this Entry
“Complex.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/complex. Accessed 17 Nov. 2025.
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