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complementary

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌkɒmplɪˈmɛntəri/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌkɑmpləˈmɛntəri/

US:USA pronunciation: respellingUSA pronunciation: respelling(kom′plə men′tə rē, -trē)

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Inflections of 'complementary' (n): npl: complementaries

complementary
WordReference English Thesaurus © 2026

Sense: Adjective: forming a complement

Synonyms:

corresponding , reciprocal, supplementary, supplemental, correlative, cooperative, completing, companion , interconnected, interdependent, interrelated, contrasting, counterbalancing, offsetting, equal and opposite, opposite

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'complementary' also found in these entries (note: many are not synonyms or translations):

exchangeable - reciprocal - supplementary

🗣️Recent forum discussions about thesaurus entries:

a complementary bill - English Only forum
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complement/complementary - English Only forum
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complementary online and offline events - English Only forum
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