Synonyms of complicated

complicated 1 of 2

adjective

ˈkäm-plə-ˌkā-təd 

1

as in complicate

having many parts or aspects that are usually interrelated

a complicated apparatus

Synonyms & Similar Words

• complicate
• intricate
• complex
• sophisticated
• convoluted
• tangled
• elaborate
• involved
• difficult
• labyrinthine
• byzantine
• knotty
• varied
• baroque
• labyrinthian
• involute
• multifaceted
• mixed
• challenging
• daedal
• heterogeneous
• multifarious
• overcomplicated
• tough
• composite
• overcomplex
• compound
• incomprehensible
• inexplicable
• unintelligible
• unfathomable
• multipart
• multibranched
• impenetrable
• Kafkaesque

Antonyms & Near Antonyms

• simple
• uncomplicated
• plain
• simplistic
• simplified
• noncomplex
• noncomplicated
• homogeneous
• uniform
• oversimplified
• unvaried

2

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

• detailed
• intricate
• complex
• elaborate
• elegant
• involved
• sophisticated
• fancy
• exquisite
• magnificent
• ornate
• extravagant
• convoluted
• splendid
• Byzantine
• showy
• exuberant
• overwrought
• grandiose
• flamboyant
• frilly
• grand
• labyrinthine
• ostentatious
• fancified
• involuted
• labyrinthian
• souped-up
• gimmicked (up)
• involute
• chichi

Antonyms & Near Antonyms

• simple
• unsophisticated
• uncomplicated
• plain
• modest
• no-frills
• unfancy
• naked
• unadorned
• bare
• bald
• plain-vanilla
• undecorated
• unvarnished
• plain-Jane

complicated

2 of 2

verb

past tense of complicate

1

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

• sophisticated
• complexed
• perplexed
• intensified
• embarrassed
• confused
• entangled
• complexified
• elaborated
• expanded
• muddled
• developed
• tangled
• snarled
• confounded
• mixed (up)
• magnified
• messed (up)

Antonyms & Near Antonyms

• simplified
• streamlined
• shortened
• cut
• abbreviated
• facilitated
• eased
• straightened (out)
• oversimplified
• unraveled
• disentangled
• untangled

2

as in aggravated

to make more severe

asthma that has recently been complicated by a bout of bronchitis

Synonyms & Similar Words

• aggravated
• deepened
• intensified
• exacerbated
• worsened
• amplified
• magnified

Antonyms & Near Antonyms

• helped
• relieved
• mitigated
• alleviated
• improved
• eased
• allayed
• assuaged
• ameliorated
• bettered

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

Recent Examples of complicated

Adjective

This medicine may still be out of reach for patients who cannot afford it, don’t have access to cancer care, or who struggle to navigate complicated health care and insurance systems. — Stat Staff, STAT, 23 Oct. 2026

In many places, a single team is blacked out on League Pass, but things can get more complicated, particularly in states without teams. — Jacob Feldman, Sportico.com, 23 Oct. 2026

Verb

Rain that turned into the season's first significant snow, accompanied by strong wind, complicated the already difficult task of tackling the blaze and firefighters had to pull out overnight after several hours, officials said. — ABC News, 24 Oct. 2026

The movement has been complicated by its ties to right-wing politics in the United States, with high profile voices like US Treasury Secretary Scott Bessent and SpaceX founder Elon Musk egging them on. — Max Saltman, CNN Money, 24 Oct. 2026