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.

lacking in variety and interest; "a colorless and unimaginative person"; "a colorless description of the parade"

A diamond in which no trace of color can be detected. The ideal state for stones intended for the round brilliant cut. Truly colorless diamonds are worth a premium over others, assuming they are not severely flawed.

A property glass exhibits in the absence of coloring pigments and light is transmitted through the mass unchanged. Also known as crystal or clear glass.

weak in color; not colorful

Without color; not distinguished by any hue; transparent; as, colorless water; a colorless gas.

having lost its normal color.