a. 没什么价值的, 微不足道的, 轻浮的

Trifling \Tri"fling\, a.
Being of small value or importance; trivial; paltry; as, a
trifling debt; a trifling affair. -- {Tri"fling*ly}, adv. --
{Tri"fling*ness}, n.


Trifle \Tri"fle\, v. i. [imp. & p. p. {Trifled}; p. pr. & vb. n.
{Trifling}.] [OE. trifelen, truflen. See {Trifle}, n.]
To act or talk without seriousness, gravity, weight, or
dignity; to act or talk with levity; to indulge in light or
trivial amusements.

They trifle, and they beat the air about nothing which
toucheth us. --Hooker.

{To trifle with}, to play the fool with; to treat without
respect or seriousness; to mock; as, to trifle with one's
feelings, or with sacred things.