Related Clues:

• Less relaxed
• Less flexible
• Less forgiving
• Less limber
• More severe
• Steadier
• Not as lax
• Less lax
• More resolute
• Less likely to give in
• Less flabby
• Less loose
• Sterner or more unyielding
• By the sound of it, lacks less?
• The longer a sentence, the more it gets like this