vững chãi 
solid, fixed, stable, firm [see compounds] 
[see in German dictionary] 
[see HanViet] [ vững ] : firm, steady, stable, sound, fast
| vững chãi firm He sleeps better on a firm bed. Cậu bé ngủ ngon hơn trên giường cứng. |
All Compounds:
vững chãi