1. anti as in antidote   opposite, against   prior to, before   many   across   Hint Half-n-half Clue   2. sym as in symbiotic   below normal, lower   with, together   many   bad, faulty   Half-n-half Clue   3. de as in decadence   near, around   away from   in favour of, forward   down   Half-n-half Clue   4. pro as in propitiate   earliest, first   outside, beyond   below normal, lower   in favour of, forward   Half-n-half Clue   5. prim as in primordial   prior to, before   near, around   earliest, first   half, partly   Half-n-half Clue   6. hyper as in hyperbole   excessively   out   prior to, before   below normal, lower   Half-n-half Clue   7. peri as in peripatetic   away from   near, around   half, partly   down   Half-n-half Clue