useful

useful

形容词比较级：more useful

形容词最高级：most useful

词形变化：

副词: usefully | 名词: usefulness |

同义词：

beneficial | helpful | practical | handy | valuable | serviceable | functional | advantageous | effective | constructive | expedient | profitable | good | advisable | favorable | positive | nifty | convenient | suitable | worthwhile | efficacious | utilitarian | utile |

反义词：

useless |

词义辨析：

同义:

a.有用的; 有益的

helpful  handy  serviceable  valuable  beneficial  profitable  advantageous  practical  functional  

同义参见:

advisable  good  constructive  favorable  expedient  effective  

反义:

a.有用的; 有益的

useless  ineffectual  helpless  futile  vain