IPA: /dɪˈzʌltərɪnəs/
KK: /dɪˈzʌltərɪnəs/
The condition of being disconnected or lacking a clear purpose, often resulting in a random or haphazard manner of doing things.
His desultoriness in studying led to poor grades.
Desultoriness → It is formed from "desultor" (from Latin "desultor", meaning a jumper or one who leaps) and the suffix "-iness" (meaning the quality of). The word describes the quality of jumping from one thing to another without a fixed purpose or plan.
Think of someone who 'jumps' ('desultor') from one topic to another without focus — that's what desultoriness means.