randomly

from WordNet (r) 3.0 (2006)

randomly
    adv 1: in a random manner; "the houses were randomly scattered";
           "bullets were fired into the crowd at random" [syn:
           {randomly}, {indiscriminately}, {haphazardly}, {willy-
           nilly}, {arbitrarily}, {at random}, {every which way}]

from The Collaborative International Dictionary of English v.0.48

Randomly \Ran"dom*ly\ (r[a^]n"d[u^]m*l[y^]), adv.
   In a random manner.
   [1913 Webster]