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From ambig(ō) (wander; waver, hesitate) +‎ -uus.



ambiguus (feminine ambigua, neuter ambiguum); first/second declension

  1. going two ways, hither and thither, moving from side-to-side
  2. hybrid
  3. changing, fluctuating, wavering
  4. uncertain, doubtful, undecided, indecisive
  5. (of discourse) obscure, ambiguous
  6. (figuratively) wavering, not to be relied on, untrustworthy, unreliable, treacherous


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative ambiguus ambigua ambiguum ambiguī ambiguae ambigua
genitive ambiguī ambiguae ambiguī ambiguōrum ambiguārum ambiguōrum
dative ambiguō ambiguō ambiguīs
accusative ambiguum ambiguam ambiguum ambiguōs ambiguās ambigua
ablative ambiguō ambiguā ambiguō ambiguīs
vocative ambigue ambigua ambiguum ambiguī ambiguae ambigua

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  • ambĭgŭus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • ambiguus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • ambiguus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • obsolete, ambiguous expressions: prisca, obsoleta (opp. usitata), ambigua verba