required
7 synonyms and 0 antonyms for required, grouped by meaning and by how common each one is.
Adj — Necessary or mandatory.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
How to use required
The word patterns that sound natural to a native speaker.
Frequently asked questions
What does “required” mean?
The word “required” means necessary or mandatory. In plain terms, something you must do or have — not optional.
How do you pronounce “required”?
“Required” is pronounced rih-KWEYE-uhd (/ɹɪˈkwaɪɹd/ in IPA).
How do you use “required” in a sentence?
Here is “required” used in a sentence: “Attendance at the orientation is required for all new employees.”
What part of speech is “required”?
“Required” is an adjective.
Is “required” a common word?
“Required” is a very common word in modern English.
What is the difference between 'required' and 'optional'?
They are opposites. 'Required' means something is necessary and must be done or provided — there is no choice about it. 'Optional' means it is left to your discretion; you may do it or skip it freely. A required field must be filled in, while an optional one can be left blank.
What is the difference between 'required' and 'requested'?
'Required' means mandatory — you have no choice but to comply. 'Requested' is far softer; it means someone has asked for something, but you may still decline. A required document must be submitted, whereas a requested one is merely wished for. The gap between them is obligation versus polite asking.
Is 'required' a formal word?
Yes, 'required' is fairly formal and common in official, legal, and academic contexts — 'proof of identity is required.' In casual speech people often say 'needed' or 'you have to.' All convey necessity, but 'required' carries a firm, rule-bound tone that suits instructions and regulations.