| swell(adjective, pleasant, fair, agreeable, suitable) |
| tolerable(adjective, pleasant, fair, agreeable, suitable) |
| trendy(adjective, pleasant, fair, agreeable, suitable) |
| undeceived |
| unexceptional(adjective, pleasant, fair, agreeable, suitable) |
| unobjectionable(adjective, pleasant, fair, agreeable, suitable) |
| up(adjective, familiar, knowledgeable, skilled, aware) |
| up-to-date(adjective, familiar, knowledgeable, skilled, aware) |
| up to code(expression, adjective, idiom, fair, agreeable) |
| up to snuff(expression, adjective, idiom, fair, agreeable) |
| versant(adjective, familiar, knowledgeable, skilled, aware) |
| versed(adjective, familiar, knowledgeable, skilled, aware) |
| wary(adjective, smart, shrewd, clever, subtle) |
| watchful(adjective, smart, shrewd, clever, subtle) |
| welcome(adjective, pleasant, fair, agreeable, suitable) |
| well-read |
| wise to |
| witting(adjective, sympathetic, familiar, knowledgeable, skilled) |
| worldly-wise(adjective, smart, shrewd, clever, subtle) |
| OK(adjective, acceptable) |