1.
resistant; defiant; oppositional
Describing an attitude or behavior that pushes back against authority, ideas, or pressure.
彼は上司に反発的な態度を取った。
He took a defiant attitude toward his boss.
思春期の子供は親に反発的になりやすい。
Adolescent children tend to become resistant toward their parents.
新しい政策に対して市民は反発的な反応を示した。
Citizens showed a resistant reaction to the new policy.
2.
repulsive; repelling
Describing a physical or psychological force that pushes things apart or away.
同じ極の磁石は反発的だ。
Same-polarity magnets are repulsive.
この素材は水に対して反発的な性質を持つ。
This material has a water-repellent property.
二つの集団の間には反発的な力が働いている。
A repulsive force is at work between the two groups.
A na-adjective formed from 反発 (repulsion; resistance) plus 的. Sense 1 describes psychological or social resistance, while sense 2 describes physical repulsion. The word 反発 itself has both meanings, and the adjective inherits them.
COMMON COLLOCATIONS:
- 反発的な態度: resistant attitude
- 反発的な反応: oppositional reaction
- 反発的な力: repulsive force
- 反発的になる: to become defiant
SIMILAR WORDS:
- 反抗的: rebellious; defiant — stronger than 反発的, implying active resistance against authority
- 敵対的: hostile; antagonistic — implies deeper hostility rather than mere resistance
- 批判的: critical — intellectual opposition through analysis rather than emotional pushback