11 letters
- punctations20
- puritanisms19
- rifampicins24
- romanticise18
- romanticism21
- romanticist18
- ruminations17
- rustication16
- sanctioning19
- sanitoriums16
- scriptorium21
- semiotician18
- sonications16
- spiculation20
- sporulation17
- subornation17
- supernation17
- supinations17
- suspiration16
- syncopation21
- truncations17
- unanimities17
- unchristian19
- unidiomatic20
- unification20
- unimportant20
- uninspiring20
- unpatriotic19
- unpromising22
- urtications16
- utopianisms19