Coshes can be used as a verb to mean assault or hit with a blunt instrument. Its antonyms would therefore be words that imply peace or avoidance of violence. Some examples of antonyms for coshes are "protect," "defend," "nurture," "embrace" or "love." Other antonyms that can be used are "aid," "assist," "help" or "support." Using these words instead of coshes would imply a more positive and helpful approach towards conflict resolution, rather than resorting to physical violence. It is important to choose our words carefully, as they can impact the outcome of a situation.