What does underluminous mean?
Underluminous means Insufficiently luminous.
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Pronunciation varies by accent · adjective
Insufficiently luminous.
Use underluminous when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Underluminous means Insufficiently luminous.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use underluminous where its definition matches the intended context.
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