No, stim is not in the scrabble dictionary.

What is the meaning of stim?

Any of various repetitive actions, such as flapping the hands, wiggling the knees, shining a light into one's eye, and spinning in a chair, typically performed by autistic people. noun. 2.

What does the root word stim mean?

noun. Irish (used with a negative) a very small amountI couldn't see a stim; she hasn't a stim of sense.