The most remote. superlative form of remote: most remote.(adjective)
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Use "remotest" in a sentence
"In the attempt to connect the New World with the Old in remotest times, it is almost impossible to find a clue that leads to documentary history."
"If any one shall wish to know, in remotest centuries, what kind of a mutiny this Southern outbreak was against all right reason and justice and honor, he will find his indisputable answer in the murder at"
"He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority; but you will receive power when the Holy Spirit has come upon you; and you shall be My witnesses both in Jerusalem, and in all Judea and Samaria, and even to the remotest part of the earth.”"