Unexplained

adj

adj ·3 syllables ·Uncommon ·Advanced level

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

Synonyms

All synonyms
ableenigmaticincalculableincognizableinexplicableinsoluble

Example

More examples

"Foreign accent syndrome is an as-yet unexplained medical condition where the patient can no longer pronounce his mother tongue correctly and seems to have a foreign accent."

Etymology

From un- + explained.

Related phrases

sudden unexplained death syndromesudden unexplained nocturnal death syndromeunexplained aerial phenomenon

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.