Final answer:
Being bound up resulted in Gulliver feeling very sad, which is the effect described by the term 'morose.'
Step-by-step explanation:
Being bound up made Gulliver very morose, which means he felt very sad and unhappy about his situation. The term morose is associated with a general feeling of sadness or gloominess, which can often make a person seem sullen or ill-tempered.
In the context of the question asked, the effect of being bound up on Gulliver was that it made him very sad, or, in other words, it had an emotionally negative impact on him.