Stark

24 clues
Bare
Grim
Harsh
Utter
Sheer
Bleak
Severe
Barren
Austere
Utterly
Desolate
Absolute
Unadorned
Cheerless
Downright
Unvarnished
Out-and-out.
Unembellished
Thoroughgoing
Severely simple
Like a moonscape
Extremely simple
Lacking adornment
Bleak and desolate
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