unnecessary

词形变化：

副词: unnecessarily |

同义词：

needless | superfluous | uncalled-for | excess | unessential | extraneous | peripheral | pointless | redundant | gratuitous | unwarranted | excessive | avoidable | preventable | unneeded |

反义词：

necessary |

词义辨析：

同义:

a.不必要的; 无用的

needless

unessential

superfluous

excess

uncalled-for

同义参见:

peripheral

extraneous

反义:

a.不必要的; 无用的

necessary

反义参见:

basic