Related Clues:

• Extreme severity
• It's hard to endure
• Lack of laxness
• Excessive sternness
• Stringency
• Exactness
• Ordeal's quality
• Boot camp experience
• _____ mortis
• Severity, as of rules
• Laxity's opposite
• Attention to detail
• Intellectual precision
• No-nonsense nature
• Fix it or make it stiff