Haltingly

haltingly
    adv 1: in a halting manner; "he spoke haltingly"
    

Haltingly \Halt"ing*ly\ (h[add]lt"[i^]ng*l[y^]), adv.
   In a halting or limping manner.
   [1913 Webster]
    

73 Moby Thesaurus words for "haltingly":
      at irregular intervals, at random, brokenly, by catches, by fits,
      by jerks, by snatches, capriciously, cautiously, circumspectly,
      crawlingly, creepingly, deliberately, desultorily, dilatorily,
      disconnectedly, discontinuously, easily, eccentrically,
      erratically, falteringly, fitfully, gently, idly, in low gear,
      in march time, in slow motion, in slow tempo, in snatches,
      in spots, inconstantly, indolently, intermittently, irregularly,
      jerkily, languidly, languorously, leisurely, limpingly,
      lingeringly, loiteringly, lurchingly, moderately, nonuniformly,
      off and on, patchily, pokily, pokingly, relaxedly, reluctantly,
      roughly, slow, slowly, sluggishly, spasmodically, sporadically,
      spottily, tarryingly, tentatively, uncertainly, under easy sail,
      unevenly, unhurriedly, unmethodically, unpredictably,
      unrhythmically, unsteadily, unsystematically, variably,
      whimsically, with agonizing slowness, with deliberation,
      wobblingly