"Warmnesses" can be substituted with words like warmth, heat, hotness, cordiality, friendliness, geniality, amiability, and affability. The word warmth generally refers to the degree of hotness, while heat represents the sensation of high temperature, hotness is the quality of being hot. Cordiality, friendliness, geniality, amiability, and affability, all connote the quality of being warm-hearted, amiable, and pleasant in interpersonal interactions. So, if you're trying to find the right word for 'warmness,' consider the context and tone you're trying to convey. An excellent synonym can improve your text's clarity and bring new meaning to your writing.