The Nikkei 225 gained 73.16 points, or 0.1%, to 50,655.10.
Tech gains limited the Nikkei’s losses, with names like Konica Minolta climbing 5.7% and semiconductor manufacturer Disco Corp adding 4.7%, among the top gainers on the index.
In Hong Kong, the Hang Seng lost 331.13 points, or 1.3%, to 25,434.23.
The U.S. central bank is widely expected to cut rates by another 25 basis points at its final meeting of the year, bringing the Federal Funds rate to 3.5%-3.75%. However, experts said the Fed will then take a more data-dependent stance.
Australian markets again headed lower, after the country’s central bank held its policy rate at 3.6% as expected.
In other markets
The CSI 300 in Shanghai dropped 23.53 points, or 0.5%, to 4,598.22
In Korea, the Kospi fell 11.3 points, or 0.3%, to 4,143.55
In Singapore, the Straits Times Index forged ahead 6.16 points, or 0.1%, to 4,513.24.
In Taiwan, the Taiex slumped 121.18 points, or 0.4%, to 28,182.60.
In New Zealand, the NZX 50 backtracked 31.54 points, or 0.2%, to 13,454.78.
In Australia, the ASX 200 subtracted 38.5 points, or 0.5%, to 8,585.94.