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incertus (feminine incerta, neuter incertum); first/second declension

  1. uncertain, doubtful, not sure
    pater semper incertus estthe father is always uncertain
    incertam securimnot surely aimed
  2. not knowing, doubting (said of persons)
  3. not known, obscure (said of things)
  4. hesitant, hesitating, irresolute, undecided


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative incertus incerta incertum incertī incertae incerta
Genitive incertī incertae incertī incertōrum incertārum incertōrum
Dative incertō incertō incertīs
Accusative incertum incertam incertum incertōs incertās incerta
Ablative incertō incertā incertō incertīs
Vocative incerte incerta incertum incertī incertae incerta


incertus m

  1. uncertainty

Derived terms[edit]


  • incertus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • incertus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • incertus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book, London: Macmillan and Co.
    • I am undecided..: incertus sum, quid consilii capiam
    • (ambiguous) to leave a thing undecided: aliquid dubium, incertum relinquere