IPA: /ɪnˈsɜːrtɪtjuːd/
KK: /ɪnˈsɜrtɪtud/
A state of being unsure or having doubts about something.
Her incertitude about the decision made her anxious.
Incertitude → It is formed from "in-" (meaning not) and "certus" (meaning certain or sure) and the suffix "-tude" (indicating a state or condition). The word "incertitude" refers to the state of being not certain or unsure.
Think of 'not' ('in-') and 'certain' ('certus') to remember that 'incertitude' means a state of being unsure.