IPA: /ˌɪnkənˈsɪstəntli/
KK: /ɪnˌkɑːnsɪˈstɛntli/
In a way that is not steady or regular, showing differences or contradictions.
The results of the experiment were reported inconsistently, making it hard to draw conclusions.
Inconsistently → It is formed from "in-" (meaning not), "consist" (from Latin "consistere", meaning to stand together), and "-ently" (a suffix forming adverbs). The word describes a state of not standing together or being in agreement, hence lacking consistency.
Think of 'not' ('in-') standing 'together' ('consist') — that's why 'inconsistently' means not being consistent.