enigma

From Wiktionary
Wikipedia logo
Wikipedia logo
The Simple English Wikipedia has an article on:

Pronunciation[change]

Noun[change]

Singular
enigma

Plural
enigmas

  1. An enigma is something that is mysterious, puzzling, or cannot be explained.
    That man is an enigma; I never know what he's going to do next.
  2. An enigma is a riddle, or a difficult problem.

Related words and phrases[change]