Fidelity is the quality or state of being faithful to a person, such as a partner or spouse, or a thing, such as one’s country. Fidelity can also refer to accuracy or exactness in details, or the degree to which an electronic device (such as a television) accurately reproduces its effect (such as sound or picture).

// After almost three decades on the job, no one can doubt their fidelity to the company.

// The movie’s director insisted on total fidelity to the book

To ostracize someone is to exclude them from a group by the agreement of the group's members.

// She was ostracized by her community after refusing to sign the petition.

A hobgoblin is a mischievous goblin that plays tricks in children’s stories. When used figuratively, hobgoblin refers to something that causes fear or worry.

// This Halloween we were greeted at our door by werewolves, mummies, and a wide assortment of sweet-toothed hobgoblins.

Deliquesce can mean "to dissolve or melt away" or, in reference to some fungal structures (such as mushroom gills), "to become soft or liquid with age or maturity."

// The mushrooms deliquesced into an inky fluid.

Menagerie refers to a collection of animals kept especially to be shown to the public, as well as a place where such animals are kept. It can also refer figuratively to any varied mixture of things.

// The aviary featured a menagerie of exotic birds.

// The space is eclectically furnished with a menagerie of flea market finds.

Menagerie refers to a collection of animals kept especially to be shown to the public, as well as a place where such animals are kept. It can also refer figuratively to any varied mixture of things.

// The aviary featured a menagerie of exotic birds.

// The space is eclectically furnished with a menagerie of flea market finds.

Something described as acerbic is sharply or bitingly critical, sarcastic, or ironic in temper, mood, or tone.

// The comedian draws crowds that appreciate his acerbic wit.

Wreak means “to cause something very harmful or damaging.” It is often used with on or upon.

// The virus wreaked havoc on my laptop.

Rancid usually describes something edible that has a strong and unpleasant smell or taste because it is no longer fresh. In figurative use, rancid describes things that are very distasteful or offensive.

// The corpse flower, which is the largest known individual flower of any plant species, stays open five to seven days and emits a rancid odor.

Something described as sedentary does or involves a lot of sitting. Sedentary can also mean "not physically active" (as in "a sedentary lifestyle") or "not migratory" (as in "sedentary birds" or "a sedentary civilization").

// Editing the dictionary is a sedentary job.