unconvincing

As adjectives the difference between questionable and unconvincing

is that questionable is (obsolete) inviting questions; inviting inquiry while unconvincing is not convincing, plausible or believable.

As adjectives the difference between flimsy and unconvincing

is that flimsy is likely to bend or break under pressure; weak, shaky, flexible, or fragile while unconvincing is not convincing, plausible or believable.

As a noun flimsy

is thin typing paper used to make multiple copies.

Weak is a related term of unconvincing.

As adjectives the difference between weak and unconvincing

is that weak is lacking in force (usually strength) or ability while unconvincing is not convincing, plausible or believable.

Deficient is a related term of unconvincing.

As adjectives the difference between deficient and unconvincing

is that deficient is deficient while unconvincing is not convincing, plausible or believable.

As an adjective unconvincing is

not convincing, plausible or believable.

Insufficient is a related term of unconvincing.

As adjectives the difference between insufficient and unconvincing

is that insufficient is not sufficient while unconvincing is not convincing, plausible or believable.

Dubious is a related term of unconvincing.

As adjectives the difference between dubious and unconvincing

is that dubious is arousing doubt; questionable; open to suspicion while unconvincing is not convincing, plausible or believable.

As adjectives the difference between unlikely and unconvincing

is that unlikely is not likely; improbable; not to be reasonably expected while unconvincing is not convincing, plausible or believable.

As an adverb unlikely

is in an improbable manner.

As a noun unlikely

is something or somebody considered unlikely.

Improbable is a related term of unconvincing.

As adjectives the difference between improbable and unconvincing

is that improbable is not likely to be true while unconvincing is not convincing, plausible or believable.

Implausible is a related term of unconvincing.

As adjectives the difference between implausible and unconvincing

is that implausible is not plausible; unlikely; dubious while unconvincing is not convincing, plausible or believable.