unexplained

Something that's unexplained isn't known or made clear, like an unexplained creaking sound coming from the attic of your grandparents' creepy house.

Anything without a clear reason for happening or existing is unexplained, whether it's the mysterious crack in the kitchen window or some lines of movie dialogue spoken in a language you don't understand (and without subtitles). When you explain something, you describe what it is, how it works, or why it exists — and then it's explained. Add the prefix un-, meaning "not," and you get unexplained.

Definitions of unexplained
  1. adjective
    not explained
    “accomplished by some unexplained process”
    Synonyms:
    undetermined
    not yet having been ascertained or determined
  2. adjective
    having the reason or cause not made clear
    “an unexplained error”
    Synonyms:
    incomprehensible, inexplicable
    incapable of being explained or accounted for
Word Family
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