Letters that make numskull
s, k, l, n, m, u are letters that make 'numskull'
1 possible definitions for 'numskull'
Under this definition, numskull is a noun and has the following properties:
dunderhead, blockhead, bonehead, lunkhead, muttonhead, shithead, dumbass, fuckhead, knucklehead, hammerhead, loggerhead, dunce have the same meaning as 'numskull'
'numskull' can be a type of stupid person, stupe, dullard, dolt, pudding head, poor fish, pillock, stupid, pudden-head.