The Collaborative International Dictionary of English v.0.48:

Loftily \Loft"i*ly\, adv. [From Lofty.]
   In a lofty manner or position; haughtily.
   [1913 Webster]

WordNet (r) 3.0 (2006):

loftily
    adv 1: in a lofty manner; "she bore herself loftily"

Moby Thesaurus II by Grady Ward, 1.0:

43 Moby Thesaurus words for "loftily":
   Olympianly, aloofly, arrogantly, bombastically, condescendingly,
   contemptuously, contumeliously, disdainfully, flatulently,
   grandiloquently, grandiosely, grandly, gravely, haughtily,
   imperiously, imposingly, magisterially, magniloquently,
   majestically, nobly, ostentatiously, patronizingly, pompously,
   pretentiously, proudly, regally, royally, sedately, showily,
   soberly, solemnly, stately, stiltedly, superciliously, toploftily,
   tumidly, turgidly, venerably, windily, with arms akimbo,
   with dignity, with flying colors, worthily