Synonyms for Distinctness (same or very similar meaning)
WordNet sense 1 (the state of being several and distinct):
separateness, discreteness, severalty
WordNet sense 2 (the quality of being not alike; being distinct or different from that otherwise experienced or known):
otherness
WordNet sense 3 (the quality of being sharp and clear):
sharpness
From the ODE community, based on WordNet
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