The word "drafty" is an adjective that describes something as being full of drafts or gusts of air. It can also refer to a room, building, or other enclosed space where there are noticeable currents of air moving in and out due to poor insulation, ill-fitting doors or windows, or other reasons. In essence, the word "drafty" means that something is uncomfortably windy or full of drafts, often causing discomfort or wasted energy from heating or cooling systems.