The phrase "in disposition" is correct and usable in written English.
It can be used to describe someone's mood, attitude, or arrangement of something.
Example: "Her cheerful demeanor was evident in disposition during the meeting."
Alternatives: "in attitude" or "in mood."
They are close in age but different in disposition.
They were of fighters big and small in weight, fierce and friendly in disposition.
Looking aristocratic in bearing and sunny in disposition, Mr. Neal became a good-natured prince.
"My Name Is My Name" is virtually Luddite in disposition, which is what makes it stand out.
Attenborough said: "Natasha was a beautiful human in every conceivable way; gracious of manner, witty and sharp of mind, sunny in disposition and stunning in appearance.
Different in disposition and a generation removed from the father, the son carved out a more polished, if less genuine, persona.
There are, however, distinct differences in disposition among the various pedigreed varieties; the Siamese, for example, is vocal and demanding, while the Persian is quiet and fastidious.
His Rodrigo Mendoza in The Mission, for instance, while far from Hanksian in disposition, has a healthy character arc, from violent, mercenary slaver through self-imposed redemption to (not so) humble man of faith.
Picaresque in form, grotesque in characterisation and antic in disposition, The Signature of All Things whisks us through more than a century and from Kew to Hawaii, where Henry sees Captain Cook being clubbed to death.
His reticent, riotous art, nursery size, ambiguous in meaning, ambivalent in gender, essentially religious in disposition, sent tremors through the monument called secular modernism, helped break up and scatter its ideals of bigness, highness and lastingness.
Against a wall in the foyer is a steel-and-bronze sculpture featuring two facial studies of Ellison — one moody and introspective, the other somewhat more sunny in disposition.
