Answer:
3) Humorous.
Step-by-step explanation:
The word "empirical" refers to an idea or opinion that is derived from experienced or based on observation. In other words, we can say empirical means originating from verified observation rather than from theories or logic.
Among the given options, the word that is not synonymous with "empirical" is humorous. Humorous means something hilarious, funny, or amusing which is not what empirical means.
Thus, the correct answer is option 4.