The Collaborative International Dictionary of English v.0.48:

Recognizable \Rec"og*ni`za*ble\ (r[e^]k"[o^]g*n[imac]`z[.a]*b'l
   or r[-e]*k[o^]g"n[i^]*z[.a]*b'l; 277), a.
   Capable of being recognized. [Written also recognisable.]
   -- Rec"og*ni`za*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

recognizable
    adj 1: easily perceived; easy to become aware of; "this
           situation produces recognizable stress symptoms"
    2: capable of being recognized [syn: recognizable,
       recognisable, placeable]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "recognizable":
   apparent, appreciable, apprehensible, ascertainable, beholdable,
   cognizable, comprehensible, conceivable, detectable, discernible,
   disclosed, discoverable, distinguishable, evident, exposed,
   exposed to view, graspable, hanging out, in evidence, in full view,
   in plain sight, in view, insight, knowable, manifest, naked,
   noticeable, observable, open, open to view, outcropping,
   perceivable, perceptible, prehensible, revealed, seeable, seizable,
   showing, to be seen, unclouded, unconcealed, understandable,
   undisguised, unhidden, viewable, visible, visual, witnessable