I. |in+ adjective
also in·dis·pens·ible “
Etymology: in- (I) + dispensable
1. : that cannot be set aside or neglected or disregarded
his indispensable duty to help them
an indispensable obligation
2. : that cannot be dispensed with : that is absolutely necessary or requisite or essential : that cannot be done without
their assistance was indispensable
an indispensable book in this field
was an indispensable worker
freedom to read is one of the indispensable conditions of a democratic society — W.S.Dix
Synonyms: see needful
II. noun
( -s )
1. : something indispensable
needed clothing and food and other indispensables
2. indispensables plural , archaic : trousers