IPA: /fræɡˈmɛntəˌrɪli/
KK: /fræɡˈmɛntəˌrɪli/
In a way that is incomplete or consists of parts rather than a whole.
The report was written fragmentarily, making it hard to understand the main points.
Fragmentarily → It is formed from "fragment" (from Latin *fragmentum*, meaning a piece or broken part) and the suffix "-arily" (meaning in a manner). The word "fragmentarily" means in a manner that is broken or incomplete, referring to something that exists in parts rather than as a whole.
Think of 'fragment' as a piece of something, and remember that 'fragmentarily' means something exists in parts or pieces.
No commonly confused words.