The Collaborative International Dictionary of English v.0.48:

Untrimmed \Untrimmed\
   See trimmed.

WordNet (r) 3.0 (2006):

untrimmed
    adj 1: not trimmed; "shaggy untrimmed locks" [syn: untrimmed,
           uncut] [ant: cut, trimmed]

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "untrimmed":
   bald, bare, blank, guileless, naked, nude, unadorned,
   unadulterated, unaffected, unarrayed, unassumed, unassuming,
   unbeguileful, unbeguiling, uncalculating, uncomplicated,
   undeceitful, undeceiving, undeceptive, undecked, undecorated,
   undesigning, undisguised, undisguising, undissembling,
   undissimulated, undissimulating, undressed, unembellished,
   unfeigned, unfeigning, unflattering, unfurbished, ungarnished,
   unornamented, unpretended, unpretending, unsophisticated,
   unvarnished