Unexplained

adj

Definitions

Adjective
  1. 1
    Not explained; of unknown cause or origin. not-comparable

    "Why this already very fast train should be speeded up still further, when none of the other more easily timed S.R. West of England trains has a single minute pared from its schedule, is unexplained - unless this is a playful dig at the Western Region, most of whose expresses, by reason of additional stops, will be decelerated from the same date."

Adjective
  1. 1
    having the reason or cause not made clear wordnet
  2. 2
    not explained wordnet

Etymology

From un- + explained.

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