Simple past tense and past participle of obscure.(verb)
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Use "obscured" in a sentence
"He drove easily, hand resting lightly on the gear shift, his expression obscured by the sunglasses he’d pulled from the door pocket."
"One thing that constant filibustering has obscured is that the Democratic majority in the Senate is actually marginally stronger than their majority in the House."
"Utterly obscured is the number that really matters, the absolute benefit (Brawley did not respond to an email requesting comment)."