廃棄|はいきhaiki[1]atamadaka (head-high)

JLPT N1approx.Common
Definitions
  1. noun, suru verb, transitive verbdisposal; abandonment; scrapping; discarding; abolition
    もう一ひとつの面白おもしろいエネルギー源えねるぎーげんは、放射能ほうしゃのうの廃棄はいき物質ぶっしつから取り出とりだせる熱ねつである。↗
    Another interesting source of energy is the heat that can be recovered from radioactive waste material.
  2. noun, suru verb, transitive verbannulment; cancellation; abrogation; repeal
Conjugation
Dictionary form廃棄する(はいきする)
Polite (masu)廃棄します(はいきします)
Negative (nai)廃棄しない(はいきしない)
polite (masen)廃棄しません(はいきしません)
classical zu / nu廃棄せず・廃棄せぬ(はいきせず・はいきせぬ)
Past (ta)廃棄した(はいきした)
polite (mashita)廃棄しました(はいきしました)
Past negative (nakatta)廃棄しなかった(はいきしなかった)
polite (masen deshita)廃棄しませんでした(はいきしませんでした)
Te form廃棄して(はいきして)
Potential廃棄できる(はいきできる)
Passive廃棄される(はいきされる)
Causative廃棄させる(はいきさせる)
Causative passive廃棄させられる(はいきさせられる)
Conditional (ba)廃棄すれば(はいきすれば)
tara廃棄したら(はいきしたら)
Volitional廃棄しよう(はいきしよう)
polite (mashou)廃棄しましょう(はいきしましょう)
Imperative廃棄しろ(はいきしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym破棄はきWrittenWritten/formal prose. Tearing up documents or voiding contracts, as in 「契約破棄」; 「廃棄」 centers on discarding unwanted items.
  • Synonym捨てるすてるNeutralThe everyday, most colloquial word for throwing things away; 「廃棄」 is more formal, as in 「廃棄物」.
  • Synonym撤廃てっぱいWrittenWritten/formal. Repealing laws or institutions, as in 「関税撤廃」; 「廃棄」 centers on discarding unwanted items.
  • Synonym放棄ほうきNeutralNeutral. Giving up rights or responsibilities, as in 「権利放棄」; 「廃棄」 centers on discarding unwanted items.
  • Synonym廃するはいするWrittenWritten/formal verb for abolishing systems or deposing someone; 「廃棄」 centers on discarding unwanted items.
  • Related廃すはいすWrittenWritten/formal, another form of 「廃する」, meaning to abolish; 「廃棄」 centers on discarding unwanted items.
  • Antonym保存ほぞんNeutralNeutral antonym: where 「廃棄」 discards, 「保存」 preserves and keeps things.
  • Antonym維持いじNeutralNeutral antonym: where 「廃棄」 discards, 「維持」 keeps something going as is.
  • Antonym保管ほかんNeutralNeutral antonym: where 「廃棄」 discards, 「保管」 means keeping items in safekeeping.

Use 「廃棄」 for discarding unwanted items or waste, as in 「廃棄処分」. For tearing up or voiding contracts pick 「破棄」, for repealing laws 「撤廃」, for giving up rights 「放棄」; in casual speech say 「捨てる」. Opposites: 「保存」, 「保管」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 不用ふようなものとして捨すてること。
  2. 条約じょうやくの効力こうりょくを当事国とうじこくの一方いっぽうの意思いしにより失うしなわせること。
Kanji in this word
English equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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