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| # | Root | Answer | Definition | Affix Options |
|---|---|---|---|---|
| 1 | play | replay | To play again. | un, re, ful, less |
| 2 | happy | unhappy | Not happy. | re, un, ly, est |
| 3 | help | helpful | Full of help. | un, less, ful, re |
| 4 | cover | discover | To find something for the first time. | mis, dis, ing, ly |
| 5 | use | reuse | To use again. | mis, re, able, less |
| 6 | fear | fearless | Without fear. | ful, less, un, re |
| 7 | kind | unkind | Not kind. | un, re, ly, ness |
| 8 | comfort | comfortable | Able to give comfort. | able, un, less, ment |
| 9 | read | reread | To read again. | un, re, er, ing |
| 10 | safe | unsafe | Not safe. | un, re, ly, ty |
| 11 | care | careful | Full of care. | ful, less, ing, re |
| 12 | teach | teacher | A person who teaches. | er, ing, able, un |
| 13 | like | dislike | To not like something. | dis, un, re, able |
| 14 | paint | painter | A person who paints. | er, ing, ed, un |
| 15 | pack | unpack | To remove items from a container. | un, re, er, ing |
| 16 | care | careless | Without care. | less, ful, ing, re |
| 17 | write | rewrite | To write again. | re, un, er, ing |
| 18 | quick | quickly | In a quick way. | ly, er, est, ness |
| 19 | fair | unfair | Not fair. | un, re, ly, ness |
| 20 | color | colorful | Full of color. | ful, less, ing, ed |
| 21 | build | rebuild | To build again. | re, un, er, ing |
| 22 | slow | slowly | In a slow way. | ly, er, est, ness |
| 23 | farm | farmer | A person who farms. | er, ing, ed, un |
| 24 | agree | disagree | To have a different opinion. | dis, un, re, ment |
| 25 | joy | joyful | Full of joy. | ful, less, ous, ly |
| 26 | lock | unlock | To open a lock. | un, re, er, ing |
| 27 | hope | hopeless | Without hope. | less, ful, ing, ed |
| 28 | tell | retell | To tell again. | re, un, er, ing |
| 29 | work | worker | A person who works. | er, ing, ed, able |
| 30 | lucky | unlucky | Not lucky. | un, re, ly, est |
| 31 | peace | peaceful | Full of peace. | ful, less, ly, un |
| 32 | fill | refill | To fill again. | re, un, ing, ed |
| 33 | soft | softly | In a soft way. | ly, er, est, ness |
| 34 | appear | disappear | To stop being seen. | dis, un, re, ance |
| 35 | power | powerful | Full of power. | ful, less, ing, ed |
| 36 | wrap | unwrap | To remove the wrapping. | un, re, er, ing |
| 37 | pain | painless | Without pain. | less, ful, ed, ing |
| 38 | heat | reheat | To heat again. | re, un, er, ing |
| 39 | sing | singer | A person who sings. | er, ing, able, un |
| 40 | true | untrue | Not true. | un, re, ly, th |
| 41 | wonder | wonderful | Full of wonder. | ful, less, ing, ed |
| 42 | connect | disconnect | To separate or undo a connection. | dis, un, re, ion |
| 43 | visit | revisit | To visit again. | re, un, or, ing |
| 44 | loud | loudly | In a loud way. | ly, er, est, ness |
| 45 | end | endless | Without end. | less, ing, ed, er |
| 46 | certain | uncertain | Not certain. | un, re, ly, ty |
| 47 | rest | restful | Full of rest. | ful, less, ing, ed |
| 48 | view | review | To look at again. | re, un, er, ing |
| 49 | clean | cleaner | A person who cleans. | er, ing, est, ly |
| 50 | tie | untie | To undo something that is tied. | un, re, ing, ed |
| 51 | friend | friendly | In a friendly way. | ly, ship, less, un |
| 52 | make | remake | To make again. | re, un, er, ing |
| 53 | think | rethink | To think again. | re, un, er, ing |
| 54 | spell | misspell | To spell incorrectly. | mis, re, un, ing |
| 55 | measure | measureable | Able to be measured. | able, ment, ing, un |
| 56 | dance | danceer | A person who dances. | er, ing, ed, able |
| 57 | brave | bravely | In a brave way. | ly, er, est, ness |
| 58 | spot | spotless | Without spots. | less, ted, ty, un |
| 59 | done | undone | To reverse what was done. | un, re, er, ing |
| 60 | love | lovely | In a loving way. | ly, er, able, less |
| 61 | speak | speaker | A person who speaks. | er, ing, able, un |
| 62 | test | retest | To test again. | re, un, er, ing |
| 63 | count | countless | Too many to count. | less, er, ing, able |
| 64 | pleasant | unpleasant | Not pleasant. | un, re, ly, ness |
| 65 | understand | misunderstand | To understand incorrectly. | mis, re, un, ing |
| 66 | beauty | beautyful | Full of beauty. | ful, less, ly, un |
| 67 | trust | trustable | Able to be trusted. | able, ful, less, ing |
| 68 | place | misplace | To put in the wrong place. | mis, re, un, ment |
| 69 | bend | bendable | Able to bend. | able, ing, er, un |
| 70 | grace | graceful | Full of grace. | ful, less, ly, un |
| 71 | reprint | To print again. | re, un, er, ing | |
| 72 | harm | harmless | Without harm or damage. | less, ful, ed, ing |
| 73 | fold | unfold | To open what was folded. | un, re, er, ing |
| 74 | drive | driveer | A person who drives. | er, ing, en, able |
| 75 | cheer | cheerful | Full of cheer. | ful, less, ly, ing |
| 76 | do | undo | To reverse an action. | un, re, er, ing |
| 77 | respect | respectful | Full of respect. | ful, less, able, ing |
| 78 | judge | misjudge | To judge incorrectly. | mis, re, un, ment |
| 79 | bright | brightly | In a bright way. | ly, er, est, ness |
| 80 | mind | mindful | Full of thoughts or attention. | ful, less, ed, ing |
| 81 | enjoy | enjoyable | Able to be enjoyed. | able, ment, ing, ed |
| 82 | load | unload | To remove a load. | un, re, er, ing |
| 83 | taste | tasteless | Having no flavor. | less, ful, y, ing |
| 84 | start | restart | To start again. | re, un, er, ing |
| 85 | thank | thankful | Full of thanks. | ful, less, ed, ing |
| 86 | run | runer | A person who runs. | er, ning, able, un |
| 87 | event | eventful | Full of events or excitement. | ful, less, ual, ly |
| 88 | lead | mislead | To lead incorrectly. | mis, re, un, er |
| 89 | believe | unbelieve | Not believable. | un, re, dis, able |
| 90 | need | needless | Unnecessary. | less, ful, ed, y |
| 91 | wash | washable | Able to be washed. | able, er, ing, ed |
| 92 | order | reorder | To change the order. | re, un, dis, ly |
| 93 | skill | skillful | Full of skill. | ful, less, ed, ing |
| 94 | steady | unsteady | Not steady. | un, re, ly, ness |
| 95 | dream | dreamer | A person who dreams. | er, ing, y, less |
| 96 | price | priceless | Without a price. | less, y, ed, ing |
| 97 | wise | wisely | In a wise way. | ly, er, dom, ness |
| 98 | arrange | rearrange | To arrange again. | re, dis, un, ment |
| 99 | thought | thoughtful | Showing care or kindness. | ful, less, ly, un |
| 100 | doubt | doubtful | Full of doubt. | ful, less, ed, ing |