a posteriori

adjectives

involving reasoning from facts or particulars to general principles or from effects to causes
"a posteriori demonstration"
a posteriori
antonym
a priori
see also
of a proposition whose truth value is determined by observation or facts
"`all men are arrogant' is a synthetic proposition"
synthetic, synthetical
see also
of reasoning; proceeding from particular facts to a general conclusion
"inductive reasoning"
inductive
requiring evidence for validation or support
a posteriori
is similar to
derived from experiment and observation rather than theory
"an empirical basis for an ethical theory"; "empirical laws"; "empirical data"; "an empirical treatment of a disease about which little is known"
empiric, empirical

adverbs

derived from observed facts
a posteriori
antonym
a priori