English Synonyms Practice Test 7

Laxity : looseness of a limb or muscle.
Impassivity : apathy demonstrated by an absence of emotional reactions.
Serenity : the state of being calm, peaceful, and untroubled.
Listlessness : Lacking energy or disinclined to exert effort.
Lethargy : a lack of energy and enthusiasm.

Synonym of Lethargy is Laxity