Main Entry: sig·nif·i·cant
1 : having meaning;
2 a : having or likely to have influence or effect
b : probably caused by something other than mere chance <statistically significant correlation between vitamin deficiency and disease>
把上面这些意义加上“not”字，就成了：
1 : having no meaning.
2 a : having no, or unlikely to have, influence or effect. b : probably caused by mere chance
不知道HHS的“不显著”是哪来的。