very pertinent to a particular situation; opportune; to the purpose
What's at the end of the Rainbow? The Beer Store. So poetic, so ... apropos.
It's All Relative
Use it in a sentence ...or paragraph
You know that character Yoshi from Super Mario? Okay, so he swallows up the bad guys & poops them out as eggs to use against the bad guys later (close to apropos, but not yet). Now, they make Super Mario fruit snacks ... Well, how appropriate would it be to eat those Yoshi-shaped snacks & poop them out yourself? Quite apropos, if I do say so.