Collocations for absurd - adj.

be, look, seem, sound
become
find sth
She found the whole concept faintly absurd.

absolutely, completely, quite (esp. BrE), totally, utterly
clearly, manifestly (BrE), patently, simply
Such beliefs are patently absurd.

rather, somewhat
a little, slightly, etc.
faintly

a sense of the absurd
His sense of the absurd kept him from becoming too solemn.

Absurd is used with these nouns:
claim, idea, notion, situation, suggestion