1a period of time in the recent past
2(indicating a period of time up to the present) all along; the whole time
Examples
wǒ我yí xiàng一向dōu都zǎo早shuì睡zǎo早qǐ起。
我一向都早睡早起。
I make it a rule to keep early hours.
他一向只关心具体问题。
He was only bothered about concrete questions.
他穿衣服一向很随便，颜色、样式都无所谓。
He always dresses very casually, and doesn't care about color or style.