"nebulus" is probably misspelled. Trying nebulous instead Definition of nebulous
1
[ adjective ] lacking definite form or limits

Synonyms

cloudy nebulose

Examples

"gropes among cloudy issues toward a feeble conclusion"- H.T.Moore "nebulous distinction between pride and conceit"

2
[ adjective ] lacking definition or definite content

Synonyms

unfixed

Examples

"nebulous reasons" "unfixed as were her general notions of what men ought to be"- Jane Austen

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