Difference between Precarious and Parlous

PRECARIOUS vs PARLOUS: ADJECTIVE

Depending on the will or pleasure of another; held by courtesy; liable to be changed or lost at the pleasure of another.
Based on uncertain, unwarranted, or unproved premises.
Subject to chance or unknown conditions.
Dangerously lacking in security or stability.
Fraught with danger
Affording no ease or reassurance
Dangerously insecure
Dependent on the will or favor of another.
Held by a doubtful tenure; depending on unknown causes or events; exposed to constant risk; not to be depended on for certainty or stability; uncertain
Not secure; beset with difficulties
Depending on the intention of another
Dangerously insecure or unstable; perilous

Hence Dangerous; hazardous; exposed to positive peril, risk of misunderstanding, or other hazard.
Dependent upon chance; of doubtful issue; uncertain as to result.
Dependent only upon the will of the owner or originator; hence, arbitrary; unfounded.
Not secure
Beset with difficulties
Specifically, in law, of uncertain tenure; revocable at the will of the owner or creator: as, a precarious right or loan.
Dependent on the will or pleasure of another; liable to be lost or withdrawn at the will of another; hence, uncertain; insecure.

Bleak, Uncertain, Fragile, Untenable, Dire, Tenuous, Touch and go, Unsafe, Insecure, Uneasy, Dangerous, Shaky, Parlous, Unstable, Perilous

Regrettable, Difficult, Unfortunate, Fragile, Tenuous, Pathetic, Deplorable, Pitiful, Lamentable, Dismal, Touch and go, Unsafe, Dangerous, Perilous, Precarious

Bleak, Uncertain, Fragile, Untenable, Dire, Tenuous, Touch and go, Unsafe, Insecure, Uneasy, Dangerous, Shaky, Parlous, Unstable, Perilous

Regrettable, Difficult, Unfortunate, Fragile, Tenuous, Pathetic, Deplorable, Pitiful, Lamentable, Dismal, Touch and go, Unsafe, Dangerous, Perilous, Precarious

An industrialist told businessdigest that the retrenchments confirmed the parlous state of the economy.
My preferent is a parlous attribute for apiece, and set you up for your needs met.
Franco made noises more regrettable than any James Brown ever uttered about Richard Nixon in far less parlous circumstances.
You can visit the spa or massage parlous when you want a full body therapy.
If he is in both senses independent his position is parlous.
According to MPAJ's statistics, there are 33 massage parlous with licences as of May.
Kiryl: At last we locate chief miscreant with responsibility for parlous state of kingdom.
The youth labour market is in a parlous state.
Our security of property has long been parlous!
Tunelessly presentable unseemliness was the parlous sited tramway.