unreliable

As adjectives the difference between unreliable and inefficient

is that unreliable is not reliable while inefficient is not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.

As adjectives the difference between untrue and unreliable

is that untrue is while unreliable is not reliable.

As a verb lying

is present participle of lang=en.

As a noun lying

is an act of telling a lie, or falsehood.

As an adjective unreliable is

not reliable.

Questionable is a related term of unreliable.

As adjectives the difference between questionable and unreliable

is that questionable is (obsolete) inviting questions; inviting inquiry while unreliable is not reliable.

Uncertain is a related term of unreliable.

As adjectives the difference between uncertain and unreliable

is that uncertain is not certain; unsure while unreliable is not reliable.

As adjectives the difference between unreliable and shaky

is that unreliable is not reliable while shaky is shaking or trembling.

Precarious is a related term of unreliable.

As adjectives the difference between precarious and unreliable

is that precarious is (comparable) dangerously insecure or unstable; perilous or precarious can be (dentistry) relating to incipient caries while unreliable is not reliable.

As adjectives the difference between unreliable and suspicious

is that unreliable is not reliable while suspicious is arousing suspicion.

As adjectives the difference between unreliable and insecure

is that unreliable is not reliable while insecure is not secure.