1.
not quite, somewhat lacking
Describes something that falls short of expectations or is missing that final touch to be satisfactory.
Usage
A mild negative evaluation: close, but not quite satisfactory; softer than outright criticism.
Common patterns
- いまいち + verb or adjective: not quite (いまいちわからない)
- いまいちだ: it's not great
Etymology
From 今一つ (one more thing needed), which is also used: 今一つだ.