| 100% | CON | 3 | Pro's opponent, in a debate |
| 100% | CON | 3 | Pro's opponent in a debate |
| 78% | CON | 3 | Pro's counterpart in a debate |
| 78% | CON | 3 | Pro's adversary in a debate |
| 77% | ANTI | 4 | "Pro" opponent in a debate |
| 73% | PRO | 3 | Con's opponent, in a debate |
| 73% | CON | 3 | Pro's opposite, in a debate |
| 73% | CON | 3 | Pro's counterpart, in a debate |
| 71% | NIELS | 5 | Albert’s opponent in a long-standing scientific debate |
| 63% | SIDE | 4 | Pro or con, in a debate |
| 61% | CON | 3 | Pro and ___ (sides in a debate) |
| 60% | PRO | 3 | Opponent of "con" in a debate |
| 59% | HARE | 4 | Tortoise's opponent in a fable |
| 58% | CON | 3 | Opposite of pro, in a debate |
| 58% | RED | 3 | Black's opponent in a checkers game |
| 58% | BURR | 4 | Hamilton's opponent in a famous duel |
| 58% | HARE | 4 | Tortoise's opponent in a fictional race |
| 58% | PRO | 3 | Con's opposite, in a debate |
| 58% | PRO | 3 | Con's counterpart, in a debate |
| 57% | TUBER | 5 | Disprove, as an opponent’s argument in a debate |
| 57% | JANEROE | 7 | Henry Wade's opponent in a famous court case |
| 57% | ROE | 3 | Wade's opponent in a landmark Supreme Court case |
| 57% | ROE | 3 | Wade's opponent in a 1973 Supreme Court case |
| 57% | ROE | 3 | Wade's opponent in a famous Supreme Court case |
| 57% | THELORAX | 8 | Once-ler's opponent in a Dr. Seuss book |
| 56% | CON | 3 | "Pro" counterpart, in a debate |
| 56% | NYT | 3 | Sullivan's opponent in a landmark free speech case: Abbr. |
| 56% | CON | 3 | Opposite of "pro," in a debate |
| 55% | CON | 3 | Not "pro," in a debate |
| 55% | ARMY | 4 | Navy's opponent in a football rivalry that dates to 1890 |