Related Clues:

• See 5-Down
• Rough
• Unduly severe
• Like an unfiltered cigarette, maybe
• Severe
• Cacophony
• Like many a jalopy
• Cruel
• Austere
• Polluted, in a way
• Like Siberian winters
• Desolate
• Like some truths
• Rigorous
• Difficult to endure