looseness vs profligacy

looseness and profligacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
looseness	Yes	No	No	No
profligacy	Yes	No	No	No

As nouns, looseness and profligacy are synonyms defined as:

Other synonyms of looseness include dissipation, dissolution, licentiousness.

looseness (noun)	profligacy (noun)
dissolute indulgence in sensual pleasure	dissolute indulgence in sensual pleasure
movement or space for movement	the trait of spending extravagantly
a lack of strict accuracy; laxity of practice
freedom from restraint
the quality of movability by virtue of being free from attachment or other restraints
frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor