Unoccupiable means not fit to be lived in or occupied. Some antonyms for this word could be habitable, livable, inhabitable, suitable, or occupiable. These words suggest that a space or dwelling is fit for human habitation, and can be lived in safely and comfortably. Other antonyms could include cozy, inviting, welcoming, or comfortable, implying that a space is not just safe and functional, but also pleasing to be in. By considering antonyms for unoccupiable, we can begin to imagine what features might contribute to a space being habitable and enjoyable, such as natural lighting, ventilation, and comfortable furnishings.