"hint otherwise" is correct and can be used in written English.
You can use it to indicate that someone has hinted about something other than what was mentioned or expected. For example: "I was expecting a gift from my parents on my birthday, but they hinted otherwise."
It's the luxury of progress, he said — it can't be just any black candidate, it has to be the best candidate, and for Mr. Thompson to hint otherwise would be patronizing.
Yes, Deer Valley is 3,000 vertical feet from bottommost to topmost, but that distance is covered by two separate, lift-linked mountains, and you cannot ski from the highest peak to the lowest base in one fell swoop, though you would never know that from the trail map and promotional materials, which hint otherwise.
While Scott said he was not thinking about the franchise milestone, his language hinted otherwise.
But the title hints otherwise, and a glance at Mr. Cerletty's Web site reveals a penchant for social commentary.
They assumed that these molecules occurred in equal quantity and dismissed any measurements that hinted otherwise as experimental errors.
He even famously took the Daily Mirror to court when it hinted otherwise.
If Hedges even hinted otherwise, he would be unlikely to get the generous funding of the institutions of the allegedly defunct liberal class for his books.
The music has a veiled power, and hints at otherwise hidden sources of inspiration.
And everyone's so receptive to him, like the noises actually rhyme and the flailing arms trace a sign or otherwise hint at a message.
As soon as the beets have been juiced, slowly incorporate the vitamin C powder bit by bit, using only as much as the juice will take before it gets even a hint of acidity, otherwise you will negate the intended effect of the dish.
