Sinister (4)
'sinister' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for eerie that I've seen before include "Spooky, weird" , "Unnatural" , "Unnerving" , "Strange, frightening" , "Scary, weird" .)
'sinister' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for evil that I've seen before include "Wicked - social problem" , "Extremely bad" , "Profoundly malevolent" , "Wicked or immoral" , "Wicked - vice" .)
'sinister' is the definition.
(I know that sinister can be written as dark)
This is all the clue.
(Other definitions for dark that I've seen before include "Obscure - sinister" , "Nightfall; without light" , "Nearer black than white" , "Opposite of light" , "Deprived of light" .)