IPA: /dɪsˈdʒɔɪntɪdli/
KK: /dɪsˈdʒɔɪntɪdli/
In a way that is not connected or is lacking order; in a fragmented or chaotic manner.
The speaker presented his ideas disjointedly, making it hard for the audience to follow his argument.
Disjointedly → It is formed from "dis-" (meaning apart) and "joint" (from Latin "junctus", meaning joined) and the suffix "-ly" (meaning in a manner). The word describes something that is done in a manner that is not joined or connected, hence occurring in a disconnected or fragmented way.
Think of 'apart' ('dis-') and 'joined' ('joint') to remember that 'disjointedly' means something happening in a disconnected manner.