anteriority

nouns

the quality of being in front or (in lower animals) toward the head
anteriority
is derived from
anterior
antonym
posteriority
is a type of (narrower)
the spatial property of a place where or way in which something is situated
"the position of the hands on the clock"; "he specified the spatial relations of every piece of furniture on the stage"
position, spatial relation
preceding in time
antecedence, antecedency, anteriority, precedence, precedency, priority
is derived from
anterior