Obscure
Definition
(adjective) dark, unknown, hard to understand; (verb) to cover, to make unclear
5 Most Mysterious Sounds Recorded in Space
Sentences
The obscure man hid himself amongst the shadows.
The young boy obscured the mess he made.
Synonyms/Antonyms
Synonym:
-Doubtful
-Undistinguished
Antonym:
-Clear
-Certain