functional

词形变化：

副词: functionally | 名词: functionality |

同义词：

useful | practical | effective | utility | acting | operational | operative | working | running | handy | purposeful | efficient | serviceable | going | useable | usable | operable |

反义词：

organic | nonfunctional |

词义辨析：

同义参见:

useful

utility

effective

practical

acting