1. 可怕的：redoubt 多面堡 | redoubtable 可怕的 | redoubted 可怕的

2. 可敬畏的：redolent 芬芳的,芳香的 | redoubtable 可敬畏的 | refulgent 辉煌的,灿烂的

3. 可敬畏的,可怕的：redemption 赎罪 | redolent 芬芳的芳香的 | redoubtable 可敬畏的,可怕的

4. 因为畏惧而害怕：formidable因为困难而害怕 | redoubtable因为畏惧而害怕 | awful eerie因为阴森、怪异、恐怖而害怕

1. 令人敬畏的；可敬的
If you describe someone as redoubtable, you respect them because they have a very strong character, even though you are slightly afraid of them.

e.g. ...the redoubtable Mr Brooks...
令人敬畏的布鲁克斯先生
e.g. He is a redoubtable fighter.
他是一位可敬的战士。