Frigidness is the state of being extremely cold or lacking warmth or enthusiasm. Antonyms for frigidness include warmth, affection, passion, and ardor. Warmth suggests a feeling of friendliness, love, or kindness. Affection is a tender and gentle feeling towards someone or something. Passion implies intense emotion or drive towards a particular goal or activity. Lastly, ardor is the excitement, enthusiasm, or zeal shown towards something. These antonyms emphasize the presence of emotions and feelings, as opposed to the lack of them associated with frigidness. Using these words can help to convey the opposite of frigidness in a powerful and descriptive way.