frightens
词形变化：
副词: frighteningly | 名词: frightener | 动词过去式: frightened | 动词过去分词: frightened | 动词现在分词: frightening | 动词第三人称单数: frightens |
同义词：
scare | terrify | alarm | panic | startle | upset | worry | affright | shock | petrify | awe | horrify | unnerve | spook | intimidate | daunt | funk | dismay | demoralize | terrorize | fright |
反义词：