反故ほごにする

expression, suru verb (irregular)

throw away as useless; scrap; discard

Used for physical objects, plans, or ideas that are deemed worthless and discarded. Often implies treating something as wastepaper.

• 古ふるい書しょ類るいを反故ほごにした。

  I threw away the old documents as useless.

• その案あんは結けっ局きょく反故ほごにされた。

  That plan was eventually scrapped.

expression, suru verb (irregular)

make null and void; renege on; annul; revoke

Used for promises, agreements, contracts, or decisions that are treated as if they never existed. Stronger than simply canceling; implies disregard or betrayal.

• 彼かれは約やく束そくを反故ほごにした。

  He reneged on his promise.

• その契けい約やくは一いっ方ぽう的てきに反故ほごにされた。

  The contract was unilaterally annulled.