As adjectives the difference between successful and successless

is that successful is resulting in success; assuring, or promotive of, success; accomplishing what was proposed; having the desired effect; prosperous; fortunate; happy while successless is without success; unsuccessful.

As adjectives the difference between eventful and eventless

is that eventful is of or pertaining to high levels of activity; having many memorable events while eventless is without events; uneventful.

As adjectives the difference between gumptious and shrewd

is that gumptious is {{cx|nonce|colloquial|lang=en}} Having gumption while shrewd is showing clever resourcefulness in practical matters.

Atc is likely misspelled.

Atc has no English definition.

As an initialism ATM is

initialism of lang=en or initialism of nocap=1|lang=en.

As an adverb ATM is

initialism of lang=en.

As an abbreviation atm is

atmosphere (as a unit of pressure.

As nouns the difference between courier and postman

is that courier is a person who looks after and guides tourists while postman is someone (implied male) who delivers the post (mail) to, and/or collects the post from, residential or commercial addresses, or from public mailboxes.

As a verb courier

is to deliver by courier.

As a proper noun Courier

is a monospace font that resembles the characters produced by a typewriter.

As verbs the difference between pressurize and compel

is that pressurize is to put pressure on; to put under pressure while compel is (transitive|archaic|literally) to drive together, round up.

As nouns the difference between stamina and sturdy

is that stamina is (uncountable|now considered singular) the energy and strength for continuing to do something over a long period of time; power of sustained exertion, or resistance to hardship, illness etc while sturdy is a disease in sheep and cattle, marked by great nervousness, or by dullness and stupor.

As an adjective sturdy is

of firm build; stiff; stout; strong.

As a verb soup

is or soup can be (uncommon) to feed: to provide with soup or a meal.

As a noun soup

is or soup can be any of various dishes commonly made by combining liquids, such as water or stock with other ingredients, such as meat and vegetables, that contribute flavor and texture.

As a letter b is

the second letter of the.

As a symbol b is

a blood type that has a specific antigen that aggravates the immune response in people with type a antigen in their blood they can receive blood from type b or type o, but cannot receive blood from ab or a.

As nouns the difference between beef and beefs

is that beef is the meat from a cow, bull or other bovines while beefs is plural of lang=en.

As a verb beef

is to complain.

As an adjective beef

is being a bovine animal that is being raised for its meat.

In lang=en terms the difference between accusation and cause

is that accusation is a formal charge brought against a person in a court of law while cause is a suit or action in court; any legal process by which a party endeavors to obtain his claim, or what he regards as his right; case; ground of action.

As nouns the difference between accusation and cause

is that accusation is the act of accusing while cause is the source of, or reason for, an event or action; that which produces or effects a result.

As a verb cause is

to set off an event or action.