null and void

Idioms  

1. Canceled, invalid, as in The lease is now null and void. This phrase is actually redundant, since null means “void,” that is, “ineffective.” It was first recorded in 1669.

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Example Sentences

Prasad said the agency would no longer rely on certain study results to approve vaccines for pregnant women, saying “prior promises will be null and void.”

From The Wall Street Journal

Peskov has called the warrant “outrageous and unacceptable” but also “null and void” as far as Moscow is concerned because Russia is not a party to the International Criminal Court.

From Washington Post

Moscow has repeatedly denied accusations that its forces have committed atrocities during its one-year invasion of its neighbor and the Kremlin branded the court decision as "null and void."

From Reuters

Moscow, which doesn’t recognize the court’s jurisdiction, dismissed the move as “legally null and void,” but it further ramped up the pressure on the Russian leader.

From Seattle Times

The Kremlin doesn’t recognize the authority of the the International Criminal Court and has rejected its move against Putin as “legally null and void.”

From Washington Times