"Disdainously" is a word in ENGLISH

Sideways; obliquely; with a side glance; with disdain, envy, or suspicion.

Supercilious; haughty; disdainful; curt; brusque.

In a supercilious, disdainful, or haughty manner; arrogantly.

A disdainful manner.

To view or treat with contempt, as mean and despicable; to reject with disdain; to despise; to scorn.

The act of contemning or despising; the feeling with which one regards that which is esteemed mean, vile, or worthless; …

Worthy of contempt; deserving of scorn or disdain; mean; vile; despicable.

Manifesting or expressing contempt or disdain; scornful; haughty; insolent; disdainful.

In a contemptuous manner; with scorn or disdain; despitefully.

Exhibiting contumely; rudely contemptuous; insolent; disdainful.

Rudeness compounded of haughtiness and contempt; scornful insolence; despiteful treatment; disdain; contemptuousness in act or speech; disgrace.

To stretch, as a crane stretches its neck; as, to crane the neck disdainfully.

Coyness; disdainful behavior.

To esteem worthy; to consider worth notice; -- opposed to disdain.

Haughty; disdainful.

To look down upon with disfavor or contempt; to contemn; to scorn; to disdain; to have a low opinion or …

Haughty; disdainful.

To be filled with scorn; to feel contemptuous anger; to be haughty.

A feeling of contempt and aversion; the regarding anything as unworthy of or beneath one; scorn.

The state of being despised; shame.