dead

defunct

(Or de-funked in the case of an ancient Hippy who has lost his Mojo.)

tragic

cataleptic

chronic

caustic

corrosive

eating

gastronomy

yoghurt (again)

trepidation

nervous

silence

A nervous silence ensues when someone says something which everybody thinks might cause offence, but they don't want to draw extra attention to it in the hope it will pass unnoticed.

endear

rubicund