Random ~ Oxymorons

Circle Line
Lined Circle?

Deafening Silence
Silent Roar

Bitter Sweet
Sweet Bitterness

Idle Business
Busy Idling

Smart fool
Foolish smartness?

Unknown fame
Famous Unknown?

polite audacity
audacious politeness

young aged
aged youth

open secret
secretly open

advanced retreat
Retreating advance

ok ten pairs are enough.