Which of these is the odd one out?

If you put up a ________front, you would be withholding your emotions quite well.

The moment he entered the room, he was knocked over by an _______________ of putrid stench of decay. Alas! His fears that all had succumbed were not unfounded.

The mood at the funeral was deeply _____________.

His curiosity was ____________ when he saw how the desert could be turned into a solar-farm.

________ out a living on selling scraps of recyclable trash, Jimmy could never dare dream of owning his own home.

An embodiment of kindness,

An epitome of selflessness,

A __________ of virtue.

They kept us on ______________ and took their time to reveal the much-awaited results of the competition.

One of these things is not like the others...