Why wouldn't this be a pair?

I did quiescence and ennui, but the correct answer is Tedium and Ennui.

Quiescence: Inactive / Dormant
Ennui: a feeling of listlessness arising from a lack of occupation or excitement
Tedium: too long, slow, or dull; tiresome

(also spelling out quiescence sucks…)

Also, why doesn’t this work? I’m getting a lot of these pairings wrong, even though some of them could arguably work together.

Think more about which would be the BEST pairs, rather than which would work.

That’s okay, in fact you might even disagree with some of our answers, they are not perfect. Don’t go for perfection, try and be getting around 80% average on this (after doing around 50 to 100 of them to make it a fair score)