blanched etiolate etiolated whitened
Webster's Dictionary (GCIDE)
Colorless \Col"or*less\, a.
1.Without color; not distinguished by any hue; transparent; as, colorless water; a colorless gas.
Note: [Narrower terms: ashen, bloodless, livid, lurid, pale, pallid, pasty, wan, waxen; neutral; white] [Also See: achromatic, colorless.] [1913 Webster + WordNet 1.5]
2.Free from any manifestation of partial or peculiar sentiment or feeling; not disclosing likes, dislikes, prejudice, etc.; as, colorless music; a colorless style; definitions should be colorless. [1913 Webster]
3.having lost its normal color.
Note: [Narrower terms: blanched, etiolate, etiolated, whitened; bleached, faded, washed-out, washy; dimmed, dulled, grayed; dirty; dull, sober, somber, subfusc] colored
Syn: colorless, uncolored, uncoloured. [WordNet 1.5 +PJC]