15 example of synonyms and antonyms in thesaurus?

Here are 15 examples of synonyms and antonyms:

1. Happy - Joyful (Synonym) / Sad (Antonym)
2. Fast - Quick (Synonym) / Slow (Antonym)
3. Bright - Luminous (Synonym) / Dull (Antonym)
4. Strong - Sturdy (Synonym) / Weak (Antonym)
5. Brave - Courageous (Synonym) / Cowardly (Antonym)
6. Easy - Simple (Synonym) / Difficult (Antonym)
7. Rich - Wealthy (Synonym) / Poor (Antonym)
8. Calm - Tranquil (Synonym) / Agitated (Antonym)
9. Generous - Charitable (Synonym) / Stingy (Antonym)
10. Clean - Tidy (Synonym) / Dirty (Antonym)
11. Large - Huge (Synonym) / Small (Antonym)
12. Interesting - Engaging (Synonym) / Boring (Antonym)
13. Loud - Noisy (Synonym) / Quiet (Antonym)
14. Friendly - Amicable (Synonym) / Hostile (Antonym)
15. Courage - Bravery (Synonym) / Fear (Antonym)