general lack of intellectual curiosity So... how exactly do you define "intellectual curiosity" and how do you determine whether someone has it or not?
Since you're leveling such a charge, you should be well-prepared to defend it, after all.
Intellectual curiosity is a hunger for knowledge and the truth and ability articulate the same comprehensively. For starters, if they had intellectual curiosity they should be able to answer a sentence in an interview without incessant rambling, should be able to think on their feet and should be able to name and discuss some terrible Supreme Court decisions other than Roe V. Wade.
In particular, they would find it easy to answer what newspapers and magazines they read instead of giving a vapid answer.