The phrase "a relaxed demeanor" is correct and usable in written English.
It can be used to describe someone who appears calm and at ease in their behavior or attitude.
Example: "Despite the chaos around her, she maintained a relaxed demeanor that put everyone at ease."
Alternatives: "a calm attitude" or "an easygoing manner."
Wearing a white golf shirt, plaid slacks and a relaxed demeanor, Finchem talked in glowing terms about the new title sponsor, SBS, which has signed on for the next 10 years, and how Kapalua is a golf course the tour is very fond of and how the tournament is a great way to start the year.
So it was with a relaxed demeanor on the morning of our fourth day that we tramped off toward the Mohaka River, down an abandoned logging road, fly rods bobbing behind us, trying to identify the purple and red mushrooms beneath the beech trees.
An approachable, middle-aged guy from Orlando, Trumble has a relaxed demeanor that wouldn't lead you to guess he spends his free time racing cars.
Have a calm, relaxed demeanor and speak to your dog in soft tones to help him destress.
(W05-07) Health care providers also acknowledged tHealthd for a care and relaxed demeanor.
One quality that Robertson seems to share with Rivera is an almost uncanny, relaxed demeanor.
Contrasting their relaxed demeanor, a handful of television journalists oversee the last few minutes of coverage as security crews begin to inspect the nearly empty room.
The lone waitress is knowledgeable and efficient with a relaxed, upbeat demeanor much like Robata itself.
Nothing about his relaxed demeanor suggested that he was a thief.
The ceramist Akira Satake is not used to playing the role of foreman, but you wouldn't know it from the relaxed demeanor he displayed recently while leading a crew wearing protective face shields and fire-retardant gloves at Peters Valley School of Craft in Layton, in Sussex County.
