Troglodytism

Troglodytism did not extend over the West Indies generally. On many of the Lesser Antilles and Virgin Islands caves are entirely lacking, while in other places they were not suitable for dwellings.

Source: wiktionary

Troglodytism does not necessarily imply a low cultural level. The picture of the caveman dragging his mate by her hair is a cartoonist's cliché, betraying nostalgia for bygone days, rather than a portrait of the kind of people who prefer to live below ground.

Source: wiktionary

The fortress city of Taza is a fine example of troglodytism.

Source: wiktionary

Our era is supposed to be the 1950s all over again. Indeed, we are experiencing anew many of the pleasures and benefits of that excellent decade: a salubrious prudery, a sensible avariciousness, a healthy dose of social conformity, a much-needed narrowing of minds, and a return to common-sense American political troglodytism.

Source: wiktionary