Answer:
Highly Amusing
Explanation:
A synonym means that something is similar or the same.
Hilarious means extremely funny.
Now I know that sarcasm can be hilarious, however in most cases it isn't.
Trivial can be fun, but I wouldn't say that it's hilarious.
Highly amusing, this is the closest of the three that means hilarious.
Thus, the answer is Highly amusing.
~CaityConcerto
