| Option | Meaning |
| Clear | Easily seen through; without obstruction or cloudiness. |
| Invisible | Unable to be seen; not visible to the eye. |
| Opaque | Not able to be seen through; not transparent. |
| Luminous | Emitting or reflecting light; glowing. |
From the given options, select the synonym of the underlined word.
Once the shrubs begin to \(\underline{smother}\) the little plants, we have to move them.
Even though in official statements, the Presidential office has warned against violating the 25th protocol, the government's inaction against the Market group shows the government's tacit approval of the movement. (Choose the antonym of the underlined word)