敵対|てきたいtekitai[0]heiban (flat)

1. noun, suru verb, intransitive verbhostility; antagonism; opposition
   皆みなが不法ふほう外国人がいこくじんに対たいして敵対的てきたいてきな態度たいどを取とった。↗

   Everybody took a hostile attitude toward illegal aliens.

• Synonym対抗たいこうNeutralCompeting to outdo a rival, as in 「対抗馬」; it may or may not involve hostility, whereas 「敵対」 always carries the enmity of seeing the other as an enemy.
• Synonym対立たいりつNeutralTwo sides with opposing opinions or positions, neither giving in; hostility is not required, while 「敵対」 is more strongly hostile.
• Synonym反目はんもくWrittenWritten word for mutual hatred in a strained relationship, mostly between relatives or companions; 「敵対」 also covers nations and organizations.
• Synonym確執かくしつWrittenLong-running discord from each side insisting on its own position, typical of families and political circles.
• Related反対はんたいNeutralDisagreement or an opposing opinion, also the reverse of something; 「敵対」 is an adversarial relationship that treats the other as an enemy.
• Related抵抗ていこうNeutralResisting an outside force or power, also a feeling of aversion; 「敵対」 focuses on the hostile relationship itself.
• Related反抗はんこうNeutralDefiance of authority by someone lower down, as in 「反抗期」; 「敵対」 is opposing someone one regards as an enemy.
• Related楯突くたてつくNeutralDefying a boss or elder and refusing to obey; carries a nuance of taking on someone beyond one's strength.
• Related立ち向かうたちむかうNeutralBravely confronting a difficulty or opponent head-on, with a positive nuance; 「敵対」 stresses hostility.
• Related争うあらそうWrittenThe same word 「抗う」 as above, also written 「諍う」 or 「争う」; to resist or defy, with a strong written flavor.
• Related戦うたたかうNeutralA broad word for fighting, competing and striving; 「敵対」 only denotes the hostile relationship and need not involve combat.
• Related逆らうさからうNeutralDisobeying orders or wishes, also moving against a current or trend; 「敵対」 is opposing someone as an enemy.
• Related相克そうこくWrittenWritten word for strife between incompatible forces, also the five-elements overcoming cycle; mostly abstract conflict.
• Related対戦たいせんNeutralTaking on an opponent in a match or battle; the word itself implies no enmity, unlike 「敵対」. Common in sports and games.
• Related歯向かうはむかうCasualColloquial word for defying or talking back to someone stronger; 「敵対」 applies regardless of who is stronger.
• Related抗するこうするWrittenLiterary verb meaning to resist or stand against, as in 「時流に抗する」; rare even in written prose.
• Related相対するあいたいするWrittenWritten word for facing each other or standing opposed; the emphasis is on relative position or stance.
• Related抗うあらがうWrittenLiterary word for resisting fate, trends and the like; 「敵対」 is a concrete hostile relationship.
• Related仇するあだするWrittenWritten word with a strong archaic flavor: to harm, invade or make an enemy of someone; rarely used today.
• Related対敵たいてきWrittenFacing or engaging an enemy, as in 「対敵行為」; found mostly in military and legal documents.
• Antonym協調きょうちょうNeutralAntonym: mutual concession and cooperation; the opposite of 「敵対」.
• Antonym友好ゆうこうNeutralAntonym: friendly relations, as in 「友好国」; the opposite of 「敵対」.

Use 「敵対」 when the other side is seen and treated as an enemy, as in 「敵対関係」. For clashing opinions or positions pick 「対立」; for defiance of authority, 「反抗」; for disobeying orders or going against a trend, 「逆らう」. 「対抗」 is rivalry that need not involve enmity, 「戦う」 is actually fighting, and 「対戦」 is a match in sports or games. The antonyms are 「友好」 and 「協調」.

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

1. 相手あいてを敵てきとして憎にくみ、はむかうこと。