(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