clueless

adj

Etymology: Etymology tree English clue Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English clueless From clue + -less.

1. Without any clues or hints.

   “The shifting shapes mimicked the dilemma of the nearly clueless mystery of the Higgins Grove murders. As soon as the picture formed into something recognizable, it morphed into something else.”

2. Lacking knowledge or understanding; uninformed; oblivious.