To make something that is already bad worse:
Elliot was trying top exacerbate the situation by raising his voice

(of something that is to your advantage) not planned, happening by chance:
The timing of my friends early death was very fortuitous because I was starting to catch feelings for his girlfriend

(of a person) unwilling to obey orders or to do what should be done, or (of an animal) refusing to be controlled:
Mar is failing classes because he’s recalcitrant during classes.

very bad and shocking:
Murder is a heinous crime

something that will slove all problems:
running is not a panacea for all your problems. You have to face them head on