Final answer:
The synonym for 'prurient' in the provided context is 'obscene,' aligning with legal and moral definitions that denote an excessive interest in sexual matters that are considered not socially acceptable.
Step-by-step explanation:
The synonym for prurient as used in the context of the phrase 'Sean's weak willpower often led him to prurient activities that were of a questionable nature' would be obscene. Prurient interest or activities generally refer to having or encouraging an excessive interest in sexual matters, which is something that is considered not decent or socially acceptable. This aligns with the first definition given, as it reflects the 'appeal to the prurient interest' standard often used in legal contexts to describe material that is obscene or lacks serious social value, especially regarding sexual content.
The references provided elaborate on behavior that would qualify as prurient under legal or moral scrutiny. For example, a work that is considered to lack serious literary, artistic, political, or scientific value and has an appeal to sexual interests might be deemed prurient. Furthermore, engaging in openly sexual behavior without discretion could be described as prurient.
The moral and hereditary debate about inherent evil and vile inclinations, as cited in the third reference, showcases a struggle with prurient tendencies that may be seen as opposing the inherited or conditioned aspects of one's character.