(as) innocent as a lamb informal simile
Being faultless or guiltless
I didn't break your window. I swear, I'm innocent as a lamb!
I don't believe she did it. She’s as innocent as a lamb.
Being naive or inexperienced
I remember in the early days when I first joined the company, I was as innocent as a lamb.
They are trying to lure him down by compliments and flattery, but he doesn't realize it. He is as innocent as a lamb.
Be young or childish and not have had much experience
To lack experience.
Not inteligent, and unable to understand difficult and complicated things or ideas
Completely dark, without any light or color
I'm scared of the basement! It's as black as a skillet!