侵す|おかすokasu[2]nakadaka (mid-high)

JLPT N1approx.Common
Definitions
  1. godan verb, transitive verbto invade; to raid; to violate (airspace, etc.); to intrude; to trespass
    自然しぜんはあらゆる領域りょういきで侵おかされている。↗
    Nature is under attack on all fronts.
  2. godan verb, transitive verbto infringe; to encroach
  3. godan verb, transitive verbto harm; to afflict; to affect
Conjugation
Dictionary form侵す(おかす)
Polite (masu)侵します(おかします)
Negative (nai)侵さない(おかさない)
polite (masen)侵しません(おかしません)
classical zu / nu侵さず・侵さぬ(おかさず・おかさぬ)
Past (ta)侵した(おかした)
polite (mashita)侵しました(おかしました)
Past negative (nakatta)侵さなかった(おかさなかった)
polite (masen deshita)侵しませんでした(おかしませんでした)
Te form侵して(おかして)
Potential侵せる(おかせる)
Passive侵される(おかされる)
Causative侵させる(おかさせる)
Causative passive侵させられる(おかさせられる)
Conditional (ba)侵せば(おかせば)
tara侵したら(おかしたら)
Volitional侵そう(おかそう)
polite (mashou)侵しましょう(おかしましょう)
Imperative侵せ(おかせ)

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

Synonyms & antonyms
  • Synonym侵入しんにゅうNeutralBreaking into a place without permission, as in 「住居侵入」. 「侵す」 is a transitive verb that also covers violating rights and being assailed by illness.
  • Synonym侵略しんりゃくWrittenUnilateral violation of another nation's or group's sovereignty, territory or independence, not always by force; 「侵す」 is broader, covering personal rights and privacy.
  • Synonym侵攻しんこうWrittenAttacking into another country or other territory, stressing the offensive action; 「侵す」 is not necessarily an attack.
  • Synonym侵犯しんぱんWrittenUnlawful entry into territory or airspace, or infringement of rights, as in 「領空侵犯」; close in meaning to 「侵す」 but a formal Sino-Japanese noun.
  • Related攻め込むせめこむNeutralAttacking into enemy lines; used in war and sports. 「侵す」 focuses on crossing boundaries to do harm, and is not used for games.
  • Related占領せんりょうNeutralOccupying territory or having a place all to oneself; 「侵す」 means entering and doing harm, not necessarily occupying.
  • Related侵害しんがいWrittenInfringement of rights or interests, as in 「人権侵害」「著作権侵害」; close to the rights-violating sense of 「侵す」, but a formal noun.
  • Related占拠せんきょWrittenForcibly seizing and holding a location, as in 「不法占拠」; 「侵す」 does not emphasize holding it.
  • Related攻め入るせめいるWrittenWritten style: to attack into enemy territory; 「侵す」 is not limited to military attack.
  • Antonym守るまもるNeutralTo protect or guard; the opposite of 「侵す」 in its violating sense.
  • Antonym防ぐふせぐNeutralTo defend against or stop violation; the opposite of 「侵す」.
  • Antonym保護するNeutralTo protect so as to keep something from being violated, as in 「権利を保護する」; the opposite of 「侵す」.

Default to 「侵す」 for violating territory, rights or privacy. Use 「侵略」 for one-sided violation of another nation's or group's sovereignty, 「侵攻」 for attacking into another country or area, 「侵入」 for breaking into a place without permission, and 「侵害」 for infringing rights.

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

Japanese definitions
  1. 武力ぶりょくや不正ふせいな方法ほうほうで他国たこくや他人たにんの領土りょうど・領域りょういきに入り込はいりこむ。
  2. 他人たにんの権利けんりや領域りょういきに不当ふとうに入り込はいりこみ、損そこなう。
  3. 病気びょうきやけがなどが体からだや心こころに悪わるい影響えいきょうを与あたえる。
Kanji in this word
English equivalents

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

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