[in.cer.ti.tude] n [ME, fr. MF, fr. LL incertitudo, fr. L in- + LL certitudo certitude] (15c): uncertainty: a: absence of assurance or confidence: doubt b: the quality or state of being unstable or insecure
INCERTITUDE
Meaning of INCERTITUDE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012