IPA: /nɒnˈsiːkwənʃəli/
KK: /nɑnˈsikwənʃəli/
In a way that does not follow a specific order or sequence.
The events were presented nonsequentially, making it challenging to follow the storyline.
Nonsequentially → It is formed from "non-" (meaning not) and "sequential" (from Latin "sequentia", meaning following or a sequence) and the suffix "-ly" (meaning in a manner). The word "nonsequentially" means in a manner that does not follow a sequence or order.
Think of 'not' ('non-') following a 'sequence' ('sequentia') — that's why nonsequentially means not following a specific order.