interdepartmental

adjective

Between departments; to do with the connection of departments.

“I sent the memo to the accounting department via interdepartmental mail.”

Opposite
intradepartmental
Less commonScrabble 22
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Meanings

adjectiveinterdepartmental (not comparable)
  1. not comparableBetween departments; to do with the connection of departments.

    I sent the memo to the accounting department via interdepartmental mail.

  2. not comparableInvolving multiple departments; multidepartmental.

    The memo discussed a new interdepartmental project that would require resources from nearly every group.

Synonyms & antonyms

adjectivebetween or among departments

Opposite
intradepartmental
Also see
interfunctional

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From inter- + department + -al.

Full word history & related roots →

Rhymes & wordplay

Rhymes with interdepartmental

environmentalrentaldentalexperimentalcontinentaldevelopmentalgentleinstrumentaldepartmentalaccidentalelementalintergovernmentaloccidentaltranscendentalnongovernmentalcoincidentallentiljudgmentaltemperamentalentalcompartmentalunsentimentalcentalthiopental
All rhymes →
Cite this entry
APA

interdepartmental. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/interdepartmental

MLA

“interdepartmental.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/interdepartmental. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “interdepartmental,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/interdepartmental.

Source: interdepartmental on Wiktionary, CC BY-SA 4.0.