| susceptible(adjective, keen, delicate, unstable, precise) |
| susceptive(adjective, understanding, keen, fine, sensible) |
| switched on(expression, adjective, cool, familiar, desirous) |
| talented(adjective, smart, practical, expert, skilled) |
| tense(adjective, understanding, keen, fine, sensible) |
| there(adjective, smooth, smart, practical, expert) |
| thoughtful(adjective, careful, knowledgeable, cautious, aware) |
| ticklish(adjective, understanding, keen, fine, sensible) |
| touchy(adjective, understanding, keen, fine, sensible) |
| touchy feely(expression, adjective, understanding, keen, fine) |
| trained(adjective, smart, practical, expert, skilled) |
| tricky(adjective, understanding, keen, fine, sensible) |
| turned on(expression, adjective, cool, familiar, desirous) |
| turned on to(expression, adjective, idiom, understanding, keen) |
| umbrageous(adjective, understanding, keen, fine, sensible) |
| understanding(adjective, keen, sharp, fine, smart) |
| unstable(adjective, understanding, keen, fine, sensible) |
| up(adjective, familiar, knowledgeable, competent, aware) |
| versant(adjective, smooth, smart, familiar, knowledgeable) |
| versed(adjective, cool, smart, sensible, familiar) |