It means to express contempt for someone or something; ridicule or mock.
While there isn't a direct adjective form of "deride," you can use related adjectives to express similar meanings:
* Derisive: This adjective describes something that expresses ridicule or scorn. Example: "He received derisive laughter from the audience."
* Contemptuous: This adjective describes something that expresses disdain or lack of respect. Example: "Her contemptuous gaze made him feel small."
* Scornful: This adjective describes something that expresses extreme dislike or contempt. Example: "He gave her a scornful look."
* Mocking: This adjective describes something that imitates someone or something in a way that is intended to be humorous or insulting. Example: "His mocking tone made it clear he didn't believe her."
You can also use derisive or contemptuous as adverbs to modify a verb:
* "He spoke derisively about their plan."
* "She looked at him contemptuously."