| Level 2 vocabulary |
| 偶然 | (adj-na,adj-no,n-adv,n) (by) chance/ unexpectedly/ suddenly/ accident/ fortuity/ (P) |  |
| 自然科学 | natural science/ (P) |  |
| 全然 | (adv) (1) wholly/ entirely/ completely/ (2) not at all (with neg. verb)/ (P) |  |
| 天然 | (n) nature/ spontaneity/ (P) |  |
| 突然 | (adj-na,adj-no,adv) abruptly/ suddenly/ unexpectedly/ all at once/ (P) |  |
| Level 1 vocabulary |
| 依然 | (adv,n) still/ as yet/ (P) |  |
| 公然 | (adj-na,adj-no,n) open (e.g. secret)/ public/ official/ (P) |  |
| 整然 | (adj-na,n) orderly/ regular/ well-organized/ trim/ accurate |  |
| 断然 | (adj-na,adv,n) firmly/ absolutely/ definitely/ (P) |  |
| 漠然 | (adj-na,n) obscure/ vague/ equivocal/ (P) |  |
| 必然 | (n) inevitable/ necessary/ (P) |  |
| 呆然 | (adj-na,n) dumbfounded/ overcome with surprise/ in blank amazement |  |