wkstats shows it in the list of level 2 vocab. I vaguely remember learning it, along with its correct meaning, back in level 2. But when I copy and paste the link, I get this: “Quite the explorer, aren’t you? ”
I thought I had learned this word as “very”; and I distinctly remember getting it mixed up with 大きい on the first few reviews. But when I never saw it again in reviews. In Kaniwani I entered ooini when they wanted nakanaka, then searched the WK vocab list and when I saw it wasn’t there, I convinced myself I was imagining things and had made up a word. Only today I saw the list in wkstats and realized my memory was accurate. Has this word been scrubbed from Wanikani in the last few months?