| unexcited(adjective, calm, quiet, reasonable, sensible) |
| unfeigned(open, honest, true, straightforward, straight) |
| unfrivolous |
| unidealistic(adjective, simple, reasonable, sensible, rational) |
| unimpassioned(adjective, calm, quiet, reasonable, sensible) |
| unpretentious(open, honest, true, straightforward, straight) |
| unruffled(adjective, calm, quiet, cool, reasonable) |
| unsentimental(adjective, tough, reasonable, sharp, sensible) |
| unsmiling |
| up-front(open, honest, true, straightforward, straight) |
| uptight(adjective, tough, severe, firm, harsh) |
| wholehearted(open, honest, true, straightforward, straight) |
| aloof(adjective, calm, restrained, subdued, impassive) |
| apathetic(rational, straightforward, down-to-earth) |
| big(heavy, substantial) |
| big deal(expression, big, heavy, substantial) |
| bleak(dull, dark, gloomy) |
| brisk |
| bulky(big, heavy, substantial) |
| burdensome(big, heavy, substantial) |