"slightly put off" is a correct and usable phrase in written English.
It can be used to describe being mildly annoyed or upset. For example: "I was slightly put off by her attitude during the meeting."
"I was slightly put off," she said.
"I had been slightly put off them before," he told me, in an e-mail.
Even the incredibly creative boys of that age, that feel they have something to say, must be slightly put off by the idea that reading 'isn't always cool'.
Crystal Castles – Baptism We were slightly put off reviewing this record by the fact that everyone who hears it seems to soil themselves.
I'd always been slightly put off ballet because I thought it was going to be elitist and snobby, but my experience has been quite the opposite.
Jazzactivist writes: I have always been slightly put off by the Greens because of they seem very south-centric and not as opposed to capitalism and the wealth divide as I think they should be.
The slightly tricky access will put off any fair weather explorers, but those that do make the effort will always find somewhere to lie and enjoy the tranquility.
Carcetti's office: a noisy homeroom, as Royce employs slightly murky tactics to put off his rival, sending the DPW to dig up the road outside.
Stevia has a slightly bitter aftertaste that may put off some drinkers.
Revenues, which came in slightly below estimates, might have put off some investors.
The building's rounded design means that some bedroom walls are slightly curved, which brokers say has put off some prospective buyers who are confused about how to decorate.
