IPA: /ˌɪn.həʊ.məˈdʒiː.nəs/
KK: /ɪnhoʊməˈdʒinəs/
Not uniform or consistent in composition or structure; having different or varied elements.
The mixture was inhomogeneous, with large chunks of solid material floating in the liquid.
Inhomogeneous → It is formed from "in-" (meaning not) and "homogeneous" (from Greek "homogenes", meaning of the same kind). The word describes something that is not of the same kind or composition.
Think of 'not' ('in-') being combined with 'of the same kind' ('homogeneous') to remember that inhomogeneous means something that is not uniform or consistent.