presumptive
Pronunciation: /prɪˈzʌm(p)tɪv/
adjective
- 1of the nature of a presumption; presumed in the absence of further information: a presumptive diagnosis
- Law giving grounds for the inference of a fact or of the appropriate interpretation of the law.
- 2another term for presumptuous.

Origin:
late Middle English: from French présomptif, -ive, from late Latin praesumptivus, from praesumpt- 'taken before', from the verb praesumere (see presume)