ersatz

As a noun ersatz

is replacement, substitute.

As an adjective dubious is

arousing doubt; questionable; open to suspicion.

As a noun ersatz

is replacement, substitute.

As an adjective doubtful is

subject to, or causing doubt.

Provisional is a related term of ersatz.

As nouns the difference between provisional and ersatz

is that provisional is a member of the while ersatz is replacement, substitute.

As nouns the difference between surrogate and ersatz

is that surrogate is a substitute (usually of a person, position or role) while ersatz is something made in imitation; an effigy or substitute.

As adjectives the difference between surrogate and ersatz

is that surrogate is of, concerning, relating to or acting as a substitute while ersatz is made in imitation; artificial, especially of an inferior quality.

As a verb surrogate

is to replace or substitute something with something else; appoint a successor.

As adjectives the difference between ersatz and original

is that ersatz is made in imitation; artificial, especially of an inferior quality while original is relating to the origin or beginning; preceding all others.

As nouns the difference between ersatz and original

is that ersatz is something made in imitation; an effigy or substitute while original is an object or other creation (e.g. narrative work) from which all later copies and variations are derived.

As adjectives the difference between ersatz and counterfeit

is that ersatz is made in imitation; artificial, especially of an inferior quality while counterfeit is false, especially of money; intended to deceive or carry appearance of being genuine.

As nouns the difference between ersatz and counterfeit

is that ersatz is something made in imitation; an effigy or substitute while counterfeit is a non-genuine article; a fake.

As a verb counterfeit is

to falsely produce what appears to be official or valid; to produce a forged copy of.

As nouns the difference between lieu and ersatz

is that lieu is see in lieu or in lieu of while ersatz is replacement, substitute.

As a noun ersatz

is replacement, substitute.

As an adverb aloof is

at or from a distance, but within view, or at a small distance; apart; away.

As an adjective aloof is

reserved and remote; either physically or emotionally distant; standoffish.

As a preposition aloof is

(obsolete) away from; clear of.

As adjectives the difference between ersatz and quasi

is that ersatz is made in imitation; artificial, especially of an inferior quality while quasi is resembling or having a likeness to something.

As a noun ersatz

is something made in imitation; an effigy or substitute.

As nouns the difference between ersatz and prune

is that ersatz is replacement, substitute while prune is (obsolete) a plum.

As a verb prune is

to remove excess material from a tree or shrub; to trim, especially to make more healthy or productive.