anterior

nouns

a tooth situated at the front of the mouth
"his malocclusion was caused by malposed anteriors"

adjectives

of or near the head end or toward the front plane of a body
is derived from
antonym
is similar to
belonging to the front part
"a frontal appendage"
is similar to
of or adjacent to the forehead or frontal bone
"the frontal lobes"
is similar to
anterior to a frontal structure
"a prefrontal bone"; "prefrontal lobes"
see also
relating to or located in the front
"the front lines"; "the front porch"
is an attribute of
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"
earlier in time
is derived from