different between appreciation vs inappreciation

English

From French appréciation.Morphologically appreciate +? -ion

appreciation (countable and uncountable, plural appreciations)

A fair valuation or estimate of merit, worth, weight, etc.; recognition of excellence.
Accurate perception; true estimation.
- 2014, Ian Jack, "Is this the end of Britishness", The Guardian, 16 September 2014:
  The English, until relatively recently, seem to have imagined “English” and “British” to be interchangeable, as if Britain was just a bigger England. Our dualism gave us a better appreciation of the nation-state we lived in, though if Britain was a “nation” as well as a “state”, where did that leave Scotland?
A rise in value.

in- +? appreciation

inappreciation (uncountable)

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