Synonyms and Antonyms for indispensable

Synonyms:

• necessary
• dispensableness
• vital
• critical
• dispensability

Antonyms:

• dispensable
• indispensability
• unnecessary
• indispensableness

Synonyms:

• necessary
• essential

Antonyms:

• unnecessary

Synonyms:

• obligatory

Antonyms:

• optional