It was a very unwise move.

这样做非常失策。

《新英汉大辞典》

It experienced a complicated and winding period of correctness, unwise move, adjustment and blunders.

它经历了正确、失误，调整、再失误这样一个复杂、曲折的过程。

youdao

"This would be an extraordinarily unwise move by the North Koreans, " Under Secretary of State for Political Affairs Nicholas Burns says.

NPR: North Korea: Sanctions Are a 'Declaration of War'

Take its recent attempt to defend the currency by raising the statutory reserve requirements to as high as 40%. (This unwise move has the IMF's fingerprints all over it.) It merely restricts the amount of local currency available for changing into foreign currency, thus artificially containing incipient capital flight.

FORBES: Magazine Article

Mr. Clinton said it would be "a very, very unwise and precarious move" for Congress to deny China permanent normal trade relations, known as PNTR.

CNN: White House steps up lobbying effort for China trade bill