| symbiotic(useful, beneficial, advantageous) |
| ultraexpensive(adjective, expensive, high-priced, pricey, pricely) |
| uneconomical(adjective, fancy, high, expensive, exclusive) |
| unreasonable(adjective, fancy, high, expensive, exclusive) |
| upscale(adjective, fancy, high, expensive, exclusive) |
| utile(adjective, good, useful, practical, helpful) |
| worth |
| admirable(adjective, bad, pleasant, fine, worthy) |
| collectible(noun, adjective, catch, important, treasure) |
| instrumental(adjective, good, useful, practical, beneficial) |
| of value(expression, adjective, idiom, important, expensive) |
| respected(adjective, good, important, noble, worthy) |
| significant(adjective, good, big, important, substantial) |
| treasured(adjective, important, rare, expensive, precious) |
| usable(adjective, useful, practical, effective, beneficial) |
| admired(adjective, good, important, noble, worthy) |
| choice(adjective, good, bad, great, sound) |
| commendable(adjective, good, bad, great, sound) |
| desirable(adjective, excellent, true, noble, satisfying) |
| expedient(adjective, useful, beneficial) |