Dangerous
Part of speech: adjective
Definition: Full of danger.
Serious
Part of speech: adjective
Definition: Without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.Important; weighty; not trifling; leaving no room for play; needing great attention; critical.Really intending what is said; being in earnest; not jesting or deceiving; meaningful.
Example sentence: There's a difference between early and late abortions. If you have a late abortion, where the fetus might feel pain, then I think you should have a good reason. Because then you're inflicting pain. As you go through the third trimester, you need to have more serious reasons to end a pregnancy.