1. (

• inanition ,
• lassitude ,
• lethargy ,
• slackness ,

) weakness characterized by a lack of vitality or energy ;

2. (

• slack ,
• slackness

) the quality of being loose (not taut); "he hadn't counted on the slackness of the rope" ;

3. (

• laxness ,
• laxity ,
• remissness ,
• slackness ,

) the quality of being lax and neglectful ;