– Carl Rogers (as in Rogerian therapy) Rothbardian – Murray N. Rothbard Rousseauian – Jean-Jacques Rousseau Rubenesque – Peter Paul Rubens Rumsfeldian – Donald Rumsfeld Ruthian – Babe Ruth sadistic – Marquis de Sade Sambergian – Andy Samberg Samsonian – Samson Sapphic – Sappho (as in Sapphic love) Sartrean – Jean-Paul Sartre Sasanian – Sassan (as in Sasanian dynasty); also Sassanian, Sassanid satanic – Satan (as in Satanic Verses) Saturnine – Saturn (as in Saturnine temperament) Schenkerian – Heinrich Schenker as in Schenkerian analysis Schubertian – Franz Schubert Seleucid – Seleucus I Nicator (as in Seleucid Empire) Semitic – Shem (as in Semitic languages) Senecan – Seneca (as in Senecan Tragedy) Servian – Servius Tullius (as in Servian Wall) Severan – Septimius Severus (as in Severan dynasty) Shakespearean – William Shakespeare (as in Shakespearean authorship, Shakespearean tragedy) Shavian – George Bernard Shaw (as in Shavian alphabet, Shavian reversal) Sistine – Pope Sixtus IV (as in Sistine Chapel) Sisyphean – Sisyphus, of Greek mythology Skinnerian – B. F. Skinner (as in Skinnerian behaviorism) Smithsonian – James Smithson (as in Smithsonian Institution) Socinian – Faustus Socinus Socratic – Socrates (as in Socratic method) Solomonic – Solomon (as in Solomonic dynasty) Solonian – Solon (as in Solonian Constitution) Sophoclean – Sophocles Spencerian – Platt Rogers Spencer (as in Spencerian script) Spenserian – Edmund Spenser (as in Spenserian stanza) Spielbergian – Steven Spielberg Spinozist – Baruch Spinoza (as in Spinozism) Stalinist – Joseph Stalin (as in Stalinist architecture) stentorian – Stentor, of Greek mythology Swiftian – Jonathan Swift (as in Swiftian satire) or Taylor Swift (as in Swiftian songwriting) sybaritic – Sybaris tantalizing – Tantalus Tennysonian – Alfred, Lord Tennyson terpsichorean – Terpsichore Thatcherite – Margaret Thatcher Theodosian – Count Theodosius (as in Theodosian dynasty) thespian – Thespis Thomist – St. Thomas Aquinas (as in Thomist philosophy) Thomsonian – Dr. Samuel Thomson (as in Thomsonian Medicine) Thoreauvian – Henry David Thoreau thrasonical – Thraso, Terence's fictional character Titchy – Little Tich, stage name of Harry Relph Titian – Titian (as in titian-coloured) Timurid – Timur (Tamerlane) (as in Timurid Empire) Tironian – Marcus Tullius Tiro (as in Tironian notes) Titanic – Titan (as in Titanic prime) Tolkienism – J. R. R. Tolkien Tolstoyan – Leo Tolstoy; also Tolstoian Torricellian – Evangelista Torricelli (as in Torricellian chamber) Trotskyist – Leon Trotsky; also Trotskyite Trudeauvian - Pierre or Justin Trudeau Trumpian – Donald Trump Tychonic –