antagonist

• n. 敵; [解剖学的]拮抗筋; [生化学的]拮抗薬; 反相乗作用試薬

接頭辞 anti-, 相対的な。根元 ag、する。

antagonist

antagonist: [16] Greek agón (source of English agony) meant ‘contest, conflict’. Hence the concept of ‘struggling against (anti-) someone’ was conveyed in Greek by the verb antagōnízesthai. The derived noun antagōnistés entered English via French or late Latin.
=> agony

antagonist (n.)

1590s, from French antagoniste (16c.) or directly from Late Latin antagonista, from Greek antagonistes "competitor, opponent, rival," agent noun from antagonizesthai "to struggle against, oppose, be a rival," from anti- "against" (see anti-) + agonizesthai "to contend for a prize," from agon "contest" (see agony). Originally in battle or sport, extended 1620s to any sphere of human activity.

1. Spassky had never previously lost to his antagonist .

スパスキーはかつて彼の相手に負けたことがない。

2.His antagonist in the debate was quicker than he.

ディベートでは、彼の相手の方が反応が早かった。

3.The thing is to know the nature of your antagonist .

大切なのは相手の特性を知ることです。

4.The knight defeated each antagonist .

その騎士はそれぞれの敵を負かした。

5.He wondered what his antagonist was doing.

彼は敵が何をしているのか分からない。