| A | B |
| stupefy | to stun, baffle , or amaze |
| stymie | to block, thwart |
| superfluous | exceeding what is sufficient or necessary |
| supplant | to take place of , supersede |
| surfeit | excess, overindulgence |
| tacit | implied, not explicitly stated |
| tenacity | the quality of adherence or persistence to something valued |
| tenuous | having little substance or strength, flimsy, weak |
| terse | brief and concise in wording |
| tirade | a long and critical speech, a harsh denunciation |
| torpid | sluggish, dormant |
| torque | a force that causes rotation |
| tortuous | winding, twisting, excessively complicated |
| tout | to publicly praise or promote |
| transient | fleeting, passing quickly |
| trenchant | sharply perceptive, keen, penetrating |
| truculent | fierce and cruel, eager to fight |
| unfeigned | genuine, not false or hypocritical |
| untenable | indefensible, not viable, uninhabitable |
| urbane | sophisticated, refined, elegant |