central
cen-tral
adjective
Forming the most important or essential part of something.
"This is a central issue for our discussion."
adjective
Located in the middle or at the centre of something.
"The hotel is in a central location."
Thesaurus
Synonyms: halfway, amidship, bifocal, middlemost, nuclear, midmost, centrical, median, centred, midway, centre, middle
Antonyms: peripheral