precarious vs parlous

precarious and parlous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
precarious	No	Yes	No	No
parlous	No	Yes	No	No

As adjectives, precarious and parlous are synonyms defined as:

Other synonyms of precarious include perilous, touch-and-go.

precarious (adjective)	parlous (adjective)
fraught with danger	fraught with danger
not secure; beset with difficulties
affording no ease or reassurance