Well "antonym" means "unlike word" ,while "synonym" means "like word" ,so the opposite of "like" is "unlike" so the answer is simply "antonym"
a synanym for approxiamtly is exactly, or even 100%
A good synonym for "incentive" is "motive".
A good synonym for "rushed" would be "hurried".
synonyms for "remuneration" are "payment", "reimbursement", or "compensation".
A synonym for "boarding school" is "academy".
I believe a synonym for "share-cropping" is "farming" or even "agriculture".
Keen is a synonym of "eager"
A synonym for "hominid(s)" is "human-like"
A good synonym for "forewarn" would be "admonish",because they both mean warn in advance.
if your talking about land then i am not sure but if your talking about chasteness or pureness then a synonym for continent could be "chaste" or "pure".
A good word for"host"would be"manager",because they both mean that there is a person running everything.
The Battle of Antitietam, also known as the Battle of Sharpsburg, took place on September 17, 1862. It was part of the Maryland Campaign in the Civil War.