unreliable
2 synonyms and 1 antonym for unreliable, grouped by meaning and by how common each one is.
Adj — Not able to be trusted or depended on to perform consistently.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
undependable
Antonyms
How to use unreliable
The word patterns that sound natural to a native speaker.
unreliable source
unreliable narrator
notoriously unreliable
Etymology
From un- ("not") plus reliable.
Full origin of unreliable →Frequently asked questions
What does “unreliable” mean?
The word “unreliable” means not able to be trusted or depended on to perform consistently. In plain terms, not consistently trustworthy or dependable — used for people, sources, or equipment.
How do you pronounce “unreliable”?
“Unreliable” is pronounced uhn-rih-LEYE-uh-bl (/ˌʌn.ɹəˈlaɪ.ə.bəl/ in IPA).
How do you use “unreliable” in a sentence?
Here is “unreliable” used in a sentence: “His old car was unreliable and kept breaking down.”
What part of speech is “unreliable”?
“Unreliable” is an adjective.
Is “unreliable” a common word?
“Unreliable” is an uncommon word in modern English, usually learned at around the B2 level.
