10 letters
- pancreatin18
- praenomina18
- precaution18
- quadrennia23
- quarantine22
- quaternion22
- reacquaint24
- reanimated15
- reanointed13
- recounting18
- redactions15
- rediscount16
- reductions16
- remounting18
- renominate15
- renunciate16
- retinacula16
- rheumatoid17
- rudimental17
- rumination16
- sanatorium15
- sanctioned16
- senatorian12
- tambourine18
- tautomeric17
- tourmaline16
- tournament16
- tramontane15
- truncation16
- ulceration16
- unacademic22
- unanchored19
- uncombined23
- uncreating18
- undercoats16
- undercount18
- undogmatic21
- undomestic19
- undramatic19
- unicameral19
- uninformed20
- unneurotic17
- unpedantic20
- unromantic19
- unstrained14
- untreading16
- vacationed19
- vacationer18