sheepish : 1. abashed or embarrassed, esp through looking foolish or being in the wrong 2. resembling a sheep in timidity or lack of initiative

“His expression was sheepish.”

The joy of sheepish is that it really DOES come from ‘like a sheep’ – and dates back to Middle English (1150-1200, a quick google tells me). And it is a good word to say. Sheepish. Sheepish. Sheeeeeeeeeeeeeeeeeepish.

I’ll shut up now, she said sheepishly 😉