substantive
Pronunciation: /ˈsʌbst(ə)ntɪv/
adjective
Pronunciation: /also səbˈstantɪv/
- 1having a firm basis in reality and so important, meaningful, or considerable: there is no substantive evidence for the efficacy of these drugs
- 2having a separate and independent existence.
- (of a rank or appointment) not acting or temporary; permanent: he earned the rank of Substantive Corporal
- (of an enactment, motion, or resolution) made in due form as such; not amended.

Origin:
late Middle English (in the sense 'having an independent existence'): from Old French substantif, -ive or late Latin substantivus, from substantia 'essence' (see substance)