- Spectrographical Adj
- Spectrometric Adj
- Spectrophotometric Adj
- Spectrophotometrical Adj
- Spectropolarimetric Adj
- Spectroscopic Adj
- Spectroscopical Adj
- Spectrotypic Adj
- Spectrozonal Adj
- Specular Adj
- Speculative Adj
- Speechless Adj
- Speeding Noun Adj
- Speedy Adj
- Spelaean Adj
- Spelaeological Adj
- Speleological Adj
- Spellbinding Adj
- Spellbound Adj
- Speluncar Adj
- Spencerian Adj
- Spendable Adj
- Spendthrift Noun Adj
- Spendy Adj
- Spenserian Adj
- Spermaic Adj
- Spermatic Adj
- Spermatical Adj
- Spermatoblastic Adj
- Spermatocidal Adj
- Spermatocystic Adj
- Spermatocytal Adj
- Spermatogenetic Adj
- Spermatogenic Adj
- Spermatogenous Adj
- Spermatogonial Adj
- Spermatogonic Adj
- Spermatolytic Adj
- Spermatozoal Adj
- Spermic Adj
- Spermicidal Adj
- Spermiducal Adj
- Spermocytotoxic Adj
- Spermous Adj
- Sphacelated Adj
- Sphacelous Adj
- Sphagnous Adj
- Sphenic Adj
- Spheniodal Adj
- Sphenobasilic Adj
- Sphenocephalic Adj
- Sphenocephalous Adj
- Sphenoethmoidal Adj
- Sphenofrontal Adj
- Sphenoid Noun Adj
- Sphenoidal Adj
- Sphenomaxillary Adj
- Sphenooccipital Adj
- Sphenopalatine Adj Noun
- Sphenoparietal Adj