If a strange room was the main feature of your dream, the meaning depends on the action and other elements in the dream, but as a general guide: To enter a strange room is a warning that a casual affair could turn out to be very dangerous to you if you aren’t careful.
To find yourself in a strange room that is elegant and well-furnished signifies sudden success.
A strange room that is empty or badly furnished could suggest legal or financial troubles.
If the room was very tiny, it symbolizes a lucky last-minute escape from a bad mistake.
To see a dark, eerie or confining room suggests that that you feel trapped or repressed in a situation.
To see a very brightly lit room means you will solve a problem by learning to look at it in a new way.
It is a sign that you should trust your instincts.
To dream that you find a secret or hidden room suggests that you are developing new strengths and taking on new roles. You may be growing emotionally.