強い, つよい
1. strong, potent, competent, domineering, tough, brawny, powerful, healthy, rugged
2. good (at), skilled, knowledgeable
as 〜に強い
3. being able to handle, know how to deal (with), durable (against), resistant (to), resilient
4. firm, rigid, solid
5. intense, fierce, high
この布地は洗濯に強い。
こわい, 強い
Usually in kana
1. tough, stiff, hard
2. inflexible, obstinate, stubborn
Dialect: Hokkaido-ben
3. tired, worn out
この布地は洗濯に強い。