じゃく
jaku

Suffix

1. a little less than; a little under; slightly fewer than

Antonym of
ろくがつまつ参加さんかしゃつのったらいち週間しゅうかんじゃくやくれいれいせき予約よやくでいっぱいになった。
rokugatsumatsuni sankashao tsunottara isshūkanjakude yaku gohyakusekiga yoyakude ippaini natta
When participants were sought at the end of June all, about 500, seats were reserved in under a week.
Noun

2. weakness; the weak; low (setting)

Antonym of
Suffix

3. -lower (seismic intensity)

Antonym of