Synonyms for “Serious”:
1. Grave
2. Solemn
3. Earnest
4. Intense
5. Stern
6. Sober
7. Ponderous
8. Weighty
9. Gloomy
10. Sombre
11. Sedate
12. Solemn
13. Solemnity
14. Austere
15. Strict
16. Severe
17. Dire
18. Direful
19. Direness
20. Gravely
21. Hard
22. Hard-hitting
23. Rigid
24. Rigorous
25. Sternly
26. Strictly
27. Solemnly
28. Weightily
29. Heavy
30. Substantial
Finding the right synonym for the word “serious” can be a challenge. Whether you’re looking for the best ideas or other words for serious, you can be sure to find the perfect fit for your needs. Here is a list of some of the most popular synonyms for serious, including grave, solemn, earnest, intense, stern, sober, ponderous, weighty, gloomy, sombre, sedate, solemnity, austere, strict, severe, dire, direful, direness, gravely, hard, hard-hitting, rigid, rigorous, sternly, strictly, solemnly, weightily, heavy, and substantial. With this extensive list of synonyms, you can be sure to find the perfect fit for your needs.