Synonyms for unnecessary in English

Antonyms

• necessary
• essential
• needed
• required
• mandatory
• indispensable
• compulsory
• obligatory
• worthwhile
• important
• vital
• integral
• imperative
• urgent
• prerequisite
• incumbent
• crucial
• critical
• all-important
• pressing
• justified
• useful
• warranted
• applicable
• available
• due
• worth
• well-founded
• unavoidable
• relevant
• reasonable
• justifiable
• inevitable
• feasible
• appropriate to
• appropriate
• ...