/ˌɪn.sɪɡˈnɪf.ə.kənt/
not big or valuable enough to be considered important 微不足道的；无足轻重的
an insignificant difference
微不足道的差别
The levels of chemicals in the river are not insignificant.
河水中的化学物质含量不容忽视。
He made her feel insignificant and stupid.
他使她感到卑微愚蠢。