noun (usually in the plural) a necessary commodity for which demand is constant
Synonymsstaple
adjective pertaining to or constituting a base or basis
Oppositesincidental
adjective reduced to the simplest and most significant form possible without loss of generality
Similarstandard
adjective of or denoting or of the nature of or containing a base
Similaralkaline
Source: WordNet 3.1, Princeton University
