on a tangent

(off) on a tangent

Addressing a topic or topics not relevant to the main discussion. I tried to address the customer's problem, but she kept going off on a tangent and I couldn't understand what her true complaint was. In the middle of our conversation about my finances, my advisor went on a tangent about current events.See also: on, tangent

on a tangent

On a sudden digression or change of course, as in The professor's hard to follow; he's always off on a tangent. This phrase often occurs in the idioms fly off or go off on a tangent , as in The witness was convincing until he went off on a tangent. This expression alludes to the geometric tangent-a line or curve that touches but does not intersect with another line or curve. [Second half of 1700s] See also: on, tangent

单词	on a tangent
释义	on a tangent (off) on a tangent Addressing a topic or topics not relevant to the main discussion. I tried to address the customer's problem, but she kept going off on a tangent and I couldn't understand what her true complaint was. In the middle of our conversation about my finances, my advisor went on a tangent about current events.See also: on, tangent on a tangent On a sudden digression or change of course, as in The professor's hard to follow; he's always off on a tangent. This phrase often occurs in the idioms fly off or go off on a tangent , as in The witness was convincing until he went off on a tangent. This expression alludes to the geometric tangent-a line or curve that touches but does not intersect with another line or curve. [Second half of 1700s] See also: on, tangent
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