1590s, "capable of being distinguished from something else;" see distinguish + -able. Meaning "capable of being perceived" is from 1610s. Related: Distinguishably.
a project distinguishable into four stages of progress
only the shine of their metal was distinguishable in the gloom
distinguishable differences between the twins
distinction
distinctive
distinctly
distingue
distinguish
distinguishable
distinguished
distort
distortion
distract
distracted
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