Indubious

//ɪnˈdjuːbiəs// adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Not dubious or doubtful; certain.
  2. 2
    Not doubting; unsuspecting.

    "indubious confidence"

Synonyms

All synonyms
doubtlessunchallengeduncontestedundisputedundoubtedunquestioned

Etymology

From Latin indubius. See in- (“not”) + dubious.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.