IMPAIR = to worsen something or to make it less effective

Synonyms:
weaken, damage, injure, deteriorate, reduce, lessen, diminish

Antonyms:
improve

Examples:
- Everyone knows that too much alcohol can impair a person’s driving ability.
- My uncle is hearing-impaired, but he is excellent at reading lips.
- Without glasses, his vision is seriously impaired.
- A strained wrist will dramatically impair your ability to play tennis.
OASIS = (noun)

1. a fertile spot in a desert or barren place; 2. a place of shelter or sanctuary

Synonyms:
refuge, sanctuary, haven

Antonyms:
prison

Examples:
- My weekly yoga class is an oasis away from my daily stress.
- Many weary travelers have stopped by the desert oasis to rest and have a drink of water.
- I don’t like to have parties because my home is my oasis away from the chaos of the world.