Ninny: A ninny was considered to be a silly or foolish person, lacking intelligence or common sense.
Woodcock: This term was often used to describe someone gullible or easily fooled, like a woodcock (a type of bird).
Dolt: A dolt was seen as a stupid, slow-witted, and ignorant individual, often lacking any intellectual capacity.
Ass: This was a common term used in a derogatory way to describe someone foolish, stupid, or slow-witted, similar to the modern usage of "donkey."
Blockhead: This referred to someone perceived to have a thick head, signifying a lack of intelligence or understanding.