This is clearly subjective, but some words really sound like the thing they describe (personal favorites: puffin; bulbous; fidgeting). Do you have an example of such a word (or, alternatively, of a word that sounds like the exact opposite of what it refers to)? What do you think creates this effect?
I’ve never really thought about this. I do however find myself mulling over a word because the more you say it or write it, it just looks / sounds weird.