Having the characteristics of a sheep. shy, meek, shameful or embarrassed.

Is sheepish an adjective or adverb?

sheepish adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com.

Is sheepish an adverb?

Doing something sheepishly means expressing your embarrassment and shyness about it, like when you sheepishly admit how much you love watching soap operas on TV with your grandparents. When you think about how timid and shy a flock of sheep can be, the adverb sheepishly will make perfect sense.