Source : Webster's Revised Unabridged Dictionary (1913)

Squeamish \Squeam"ish\, a. [OE. squaimous, sweymous, probably
   from OE. sweem, swem, dizziness, a swimming in the head; cf.
   Icel. svemr a bustle, a stir, Norw. sveim a hovering about, a
   sickness that comes upon one, Icel. svimi a giddiness, AS.
   sw[=i]mi. The word has been perhaps confused witrh qualmish.
   Cf. {Swim} to be dizzy.]
   Having a stomach that is easily or nauseated; hence, nice to
   excess in taste; fastidious; easily disgusted; apt to be
   offended at trifling improprieties.

         Quoth he, that honor's very squeamish That takes a
         basting for a blemish.                   --Hudibras.

         His muse is rustic, and perhaps too plain The men of
         squeamish taste to entertain.            --Southern.

         So ye grow squeamish, Gods, and sniff at heaven. --M.
                                                  Arnold.

   Syn: Fastidious; dainty; overnice; scrupulous. See
        {Fastidious}. -- {Squeam"ish*ly}, adv. --
        {Squeam"ish*ness}, n.

Source : WordNet®

squeamishly
     adv : in a squeamish manner; "`I would rather not touch,' he said
           squeamishly"