When something is so surprising that you can hardly believe it, you say it is
When good things happen to you, you feel
When the sun is shining and there is a lot of light, you say it is
When the weather is not too hot or too cold, you say it is
When something bad happens to you or something is unpleasant, you say that it is
When you want to make a room warmer, you can use the... system.
awful
amazing
heating
bright
warm
lucky