Phrases Expressing Boredom or Interest

It's intellectually underwhelming.

C2

Meaning

It is disappointingly lacking in intellectual stimulation.

Example sentences

John: 'That seminar was a waste of time.'<br>

Alice: 'I agree, it was intellectually underwhelming.'

John: 'Yes, it was intellectually underwhelming.'

Alice: 'The presentation lacked substance.'<br>