laughably

from WordNet (r) 3.0 (2006)

laughably
    adv 1: so as to arouse or deserve laughter; "her income was
           laughably small, but she managed to live well" [syn:
           {laughably}, {ridiculously}, {ludicrously},
           {preposterously}]

from The Collaborative International Dictionary of English v.0.48

Laughable \Laugh"a*ble\, a.
   Fitted to excite laughter; as, a laughable story; a laughable
   scene.
   [1913 Webster]

   Syn: Droll; ludicrous; mirthful; comical. See {Droll}, and
        {Ludicrous}.
        [1913 Webster] -- {Laugh"a*ble*ness}, n. --
        {Laugh"a*bly}, adv.
        [1913 Webster]