"obscureness" in the noun sense
1. humbleness, unimportance, obscureness, lowliness
the state of being humble and unimportant
2. obscurity, obscureness
the state of being indistinct or indefinite for lack of adequate illumination
3. obscureness, obscurity, abstruseness, reconditeness
the quality of being unclear or abstruse and hard to understand
Source: WordNet® (An amazing lexical database of English)
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