1. Weakness characterized by a lack of vitality or energy
   - inanition, lassitude, lethargy 
2. The quality of being loose (not taut)
   "he hadn't counted on the slackness of the rope"
   - slack 
3. The quality of being lax and neglectful
   - laxness, laxity, remissness

Derived forms: slacknesses

See also: slack

Type of: looseness, neglect, neglectfulness, negligence, play, weakness

Encyclopedia: Slackness

• genus Endamoeba
• genus Engelmannia
• genus Engraulis
• genus Enhydra
• genus Ensete
• genus Ensis
• genus Entandrophragma
• genus Entelea
• genus Enterobius
• genus Enterolobium
• genus Entoloma
• genus Entomophthora
• genus Eoraptor
• genus Epacris
• genus Ephedra
• genus Ephestia
• genus Ephippiorhynchus
• genus Epidendrum
• genus Epigaea
• genus Epilachna
• genus Epilobium
• genus Epimedium
• genus Epinephelus
• genus Epipactis
• genus Epiphyllum