Syllogism
Syllogism refers to a formal argument in logic that is formed by two statements and a conclusion which must be true if the two statements are true.
// An example of a syllogism is “All men are mortal; no gods are mortal; therefore no men are gods.”
Abdicate
Abdicate usually means “to renounce a position of power, such as a throne, high office, dignity, or function.” It can also mean “to fail to do what is required by (a duty or responsibility).”
// I know many challenges lie ahead, but I take this role on willingly, and will not abdicate my responsibility.
Vertiginous
Vertiginous is a formal adjective used to describe something that causes or is likely to cause a feeling of dizziness especially because of great height.
// As a window washer for some of the city’s tallest skyscrapers, Victor had to quickly master working at vertiginous heights.
Endemic
When used for a plant or animal species, endemic describes something that grows or exists in a certain place or area, and often specifically something restricted to a particular locality or region. Endemic is also used to describe diseases that persist over time in a particular region or population. It can also mean “common in a particular area or field.”
// Our children were excited to finally see wild giant pandas—endemic to just three provinces in south-central China—during our family vacation.
// He eventually learned that low wages were endemic to his line of work, but he continued nevertheless to pursue his passion.
Faux pas
a slip or blunder in etiquette, manners, or conduct; an embarrassing social blunder or indiscretion.
Besmirch
To besmirch the reputation, name, honor, etc. of someone or something is to cause harm or damage to it.
// The allegations have besmirched the company's reputation.
Fortuitous
Fortuitous is a formal word that usually describes something that comes or happens by a lucky chance. It can also mean “happening by chance” and “fortunate, lucky.”
// The fact that we were both there was a fortuitous coincidence.
// You could not have arrived at a more fortuitous time.