Someone who is......... is hopeful about the future or the success of something in particular.

A …………is a spacecraft that is designed to travel into space and back to earth several times.

An economic ………..is a time when there is very little economic activity, which causes a lot of unemployment and poverty.

The more powerful weapons are, the more terrible the ……..is.

Someone who is…..… thinks that bad things are going to happen.

Those companies were closed due to some seriously financial problems.