| Letter | Word | Antonym | % Correct |
|---|---|---|---|
| N | South | North | 99%
|
| H | There | Here / Hither | 97%
|
| J | Senior | Junior | 97%
|
| B | Forward | Backward / Behind | 96%
|
| P | Ugly | Pretty / Pleasant / Pleasing / Pulchritudinous | 96%
|
| Q | Answer | Question / Query / Quiz | 95%
|
| Y | No | Yes / Yeah | 95%
|
| U | Them | Us | 90%
|
| W | Narrow | Wide | 89%
|
| E | Odd | Even / Equal | 82%
|
| R | Courteous | Rude / Raw / Rough / Rudimental / Rudimentary | 73%
|
| K | Ignorance | Knowledge | 71%
|
| S | Reap | Sow / Scatter / Strew | 69%
|
| V | Appear | Vanish | 69%
|
| T | Opaque | Transparent / Translucent | 68%
|
| A | Scarce | Abundant / Ample / Abounding / Awash | 60%
|
| D | Hope | Despair / Desperation / Despondency / Discouragement / Dejection / Disheartenment | 60%
|
| G | Cheerful | Gloomy / Glum | 59%
|
| Z | Nadir | Zenith | 58%
|
| L | Industrious | Lazy / Lackadaisical / Lethargic / Laggard / Lagging / Languid / Languorous / Lifeless / Loafing | 56%
|
| I | Trivial | Important / Imperative / Influential / Importunate | 48%
|
| C | Free | Captive / Caged | 45%
|
| M | Spendthrift | Miser | 40%
|
| F | Brighten | Fade / Fail / Fall / Flag / Fold | 37%
|
| O | Refuse | Offer / Overture | 18%
|