inaccessible

Universal Words adjective ~ (to sb/sth) difficult or impossible to reach or to get: They live in a remote area, inaccessible except by car. * Dirt can collect in inaccessible places. * The temple is now inaccessible to the public. * The human brain was thought to be inaccessible to experimental investigation. * (figurative) The language of teenagers is often completely inaccessible to (= not understood by) adults. OPPACCESSIBLE inaccessibility noun [U]