| 偷偷 | tōu tōu | stealthily / secretly / covertly / furtively / on the sly | ![]() |
| 阉然 | yān rán | covertly / secretly | ![]() |
| 暗喜 | àn xǐ | hidden smile / smirk / to rejoice covertly / secret satisfaction concerning one's evil plans | ![]() |
| 明争暗斗 | míng zhēng àn dòu | (idiom) to fight openly and maneuver covertly | ![]() |
