Dream about sinkhole in house is a premonition for carelessness in dress and manner. You need to look at some problem or something from a new perspective. You are not afraid to let others know that you are in charge. This is a message for your patriotism and devotion to country. You are opening yourself to others, either on a mental, emotional level.
Sinkhole in house dream is a metaphor for sorrow and mourning. You are being close-minded. You want to distance yourself from your family. This dream is sometimes your current surroundings and hold similar meaning as a house. It takes hard work to remain at the top.
If you dreamt about sinkhole in house:
You may well encounter a situation in which someone is trying to pull the wool over your eyes in a certain romantic situation. So don't be tempted to travel further down any path than feels even slightly uncomfortable for you. At this moment the cost of doing so may be more than you are willing to pay. So just for now take it easy.