"Appropriate" does not have a strong connotation. The other words have strong negative connotations associated with them. "Fat" has a negative connotation as it is related to body image and self-esteem. "Delicate" has a negative connotation as it implies fragility or weakness. "Maniacally" has a negative connotation as it implies craziness or dangerous behavior. "Gory" has a negative connotation as it is associated with violence and death. "Appropriate" is a word that is used to describe something that is suitable or right for a particular purpose, which is not having a strong connotation.