IPA: /ˌɪnəˈpriːʃəbl/
KK: /ɪnəˈpriːʃəbl/
Something that is so small or insignificant that it cannot be noticed or valued.
The changes in the budget were inappreciable and did not affect the overall plan.
Inappreciable → It is formed from "in-" (meaning not) and "appreciable" (from Latin "appretiare", meaning to value or estimate). The word "inappreciable" means not able to be valued or estimated, often referring to something so small or insignificant that it cannot be appreciated.
Think of 'not' ('in-') being added to 'valued' ('appreciable') — that's why inappreciable means something that cannot be valued.