complex sentence

noun

A sentence that contains an independent clause as well as one or more dependent clauses, such as a relative clause, an adverbial clause, or a noun clause.

Meanings

nouncomplex sentence (plural complex sentences)

plural complex sentences

  1. grammarA sentence that contains an independent clause as well as one or more dependent clauses, such as a relative clause, an adverbial clause, or a noun clause.
  2. human sciencesA sentence that contains multiple clauses, whether independent (coordinated) or dependent (subordinated); compound or complex sentence.

    Complex sentences are traditionally divided into two basic types: (i) sentences including co-ordinate clauses, and (ii) sentences including subordinate clauses.

    2004, Holger Diessel, The Acquisition of Complex Sentences, page 42
    2 more examples

    Sentences are either simple or complex. […] A complex sentence consists of two or more members, as, “Alexander, when he had conquered the world, is said to have wept, because there were not other worlds to subdue.” […] When a member of a complex sentence is simple, it is called indifferently a member, or a clause; as, “I have called; but ye have refused.”

    1830, Alexander Crombie, Etymology and Syntax of the English Language, page 226

    A sentence consisting of more than one clause is said to be complex. […] There are many ways of combining clauses to form a complex sentence. Coordinate constructions represent the special case of symmetry, parallelism, and coequality among the component clauses. More typically, these properties are lacking by virtue of one clause being subordinated to another.

    2008, Ronald W. Langacker, Cognitive Grammar: A Basic Introduction, pages 406, 412

    Synonyms: composite sentence

Synonyms & antonyms

nounA sentence that contains multiple clauses, whether independent (coordinated) or dependent (subordinated); compound or complex sentence.

Translations

Chinese Mandarin 複句 /复句
  • 複句 /复句 (fùjù)sentence containing one independent clause and a dependent clause
Finnish alisteinen yhdyslause
  • alisteinen yhdyslausesentence containing one independent clause and a dependent clause
French phrase complexe
  • phrase complexesentence containing one independent clause and a dependent clause
German Satzgefüge
  • Satzgefügesentence containing one independent clause and a dependent clause
Hungarian összetett mondat
  • összetett mondatsentence containing one independent clause and a dependent clause
Indonesian kalimat majemuk bertingkat
  • kalimat majemuk bertingkatsentence containing one independent clause and a dependent clause
Italian periodo
  • periodosentence containing one independent clause and a dependent clause
Japanese 複文
  • 複文 (fukubun)sentence containing one independent clause and a dependent clause
Korean 복문
  • 복문 (bongmun)sentence containing one independent clause and a dependent clause
Polish zdanie złożone
  • zdanie złożonesentence containing one independent clause and a dependent clause
Russian сло́жное предложе́ние
  • сло́жное предложе́ние (slóžnoje predložénije)sentence containing one independent clause and a dependent clause
Tagalog hugnayang pangungusap, langkapang pangungusap
  • hugnayang pangungusapsentence containing one independent clause and a dependent clause
  • langkapang pangungusapsentence containing one independent clause and a dependent clause
Thai สังกรประโยค, ประโยคความซ้อน
  • สังกรประโยค (sǎng-gà-rá-bprà-yòok)sentence containing one independent clause and a dependent clause
  • ประโยคความซ้อน (bprà-yòok-kwaam-sɔ́ɔn)sentence containing one independent clause and a dependent clause
Welsh brawddeg gymhleth
  • brawddeg gymhlethsentence containing one independent clause and a dependent clause
Cite this entry
APA

complex sentence. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/complex%20sentence

MLA

“complex sentence.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/complex%20sentence. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “complex sentence,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/complex%20sentence.

Source: complex sentence on Wiktionary, CC BY-SA 4.0.