IPA: //ʌnˈtaɪmliːnəs//
KK: /ʌnˈtaɪmliːnəs/
The condition of happening at an inappropriate or unsuitable time.
His untimeliness in submitting the report caused delays in the project.
Untimeliness → It is formed from "un-" (meaning not) and "timely" (from Old English "timely", meaning occurring at the right time) and the suffix "-ness" (meaning the state or quality of). The word "untimeliness" refers to the state of not occurring at the right time.
Think of 'not' ('un-') being added to 'timely', which means at the right time, and then adding 'ness' to indicate a state. This helps you remember that 'untimeliness' means the state of not being at the right time.