fruitless

词形变化：

副词: fruitlessly | 名词: fruitlessness |

词义辨析：

同义:

a.徒劳的

futile

vain

idle

unavailing

abortive

bootless

worthless

useless

ineffectual

ineffective

inefficacious

unproductive

unyielding

unprofitable

profitless

unremunerative

unrewarding

unpaying

gainless

unsuccessful

for naught

pointless

a.不毛的

unfruitful

barren

sterile

infertile

unprolific

infecund

unproductive

同义参见:

negative

反义参见:

beneficial