Synonyms for know the score

adj cognizant, conversant

Antonyms for know the score

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

know the ropes

verb. understand the particulars of a situation
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.