colourless

/ (ˈkʌləlɪs) /

without colour

lacking in interest a colourless individual

grey or pallid in tone or hue

without prejudice; neutral

Derived forms of colourless

colourlessly, adverb colourlessness, noun

Wash with alcohol until no more colour is discharged and the alcohol runs away clear and colourless.

The Elements of Bacteriological Technique |John William Henry Eyre
One who did not thoroughly know her, might have said it was like her life, colourless, but bright with innocence and peace.

Thomas Wingfold, Curate |George MacDonald
"Add our Mohawks to the militia," observed Walter Butler, in a colourless voice.

Cardigan |Robert W. Chambers
Her smile fled and her features altered to an expressionless and colourless mask.

The Business of Life |Robert W. Chambers

In an emergency she would even cook me a dinner which, in its colourless English way, was admirable.

Our House |Elizabeth Robins Pennell