inexplicable

//ˌɪnɪkˈsplɪkəbəl//
C1Frequency Level 12Formal
Visual representation of inexplicable

Adjective

inexplicableCanonical form
more inexplicableComparative
most inexplicableSuperlative
1

Unable to be explained or accounted for; impossible to understand or interpret.

For some inexplicable reason, she suddenly started laughing during the meeting.

inexplicable - Deep Vocabulary