| Alpen (a.) of or pertaining to the Alps. Thesaurus Entries alpen, alpestrine, alpigene, alpine, burled, gnarled, gnarly, hilly, knobbed, knobbly, knoblike, knotted, knotty, knurled, knurly, lumpy, monticuline, mountained, mountainous, nodal, noded, nodiform, nodose, nodular, nodulated, noduled, nubbled, nubbly, nubby, rolling, studded, subalpine, torose, tubercular, tuberculous, tuberose, tuberous |