1.
second-rate; second-class; mediocre
Not of the highest quality or rank. Used to describe people, things, or organizations that fall short of top-tier standards.
Usage
二流 is generally negative, implying that something or someone does not meet the highest standard. It is used with の to modify nouns.
While 二流 literally means "second tier," it carries a negative connotation of being mediocre or not good enough. It is more blunt than 平凡 (ordinary) and less harsh than 三流.