12 letters
- resignations16
- resignedness17
- retightening20
- rightfulness22
- rigorousness16
- salpiglossis19
- scintigraphy25
- searchlights22
- seigniorages17
- serigraphers19
- serigraphies19
- shortsighted19
- significance25
- significancy27
- slightnesses18
- spaceflights26
- spotlighting23
- sprightfully27
- sprightliest20
- stigmasterol18
- stigmatizing29
- straightaway21
- straightbred20
- straightedge19
- straightened18
- straightener17
- straightness17
- stratigraphy21
- streetlights17
- subirrigated19
- subirrigates18
- superhighway27
- thingamajigs31
- thingumajigs32
- tigerishness17
- toxigenicity27
- transfigured20
- transfigures19
- transmigrate18
- triglyceride21
- triglyphical26
- trigonometry20
- trothplights22
- underweights22
- undesignated19
- undigestible21
- unsightliest19
- vigilantisms23
- vigintillion22
- vigorousness20
- vinaigrettes19
- wallydraigle23
- weightlessly23
- weightlifter23
- welterweight23
- wheelwrights25
- whigmaleerie23
- yesternights19