hard-and-fast

H h

Definitions of hard-and-fast word

adjective hard-and-fast strongly binding; not to be set aside or violated: hard-and-fast rules. 1
adjective hard-and-fast rule: inflexible, strictly enforced 1

before 1865

One of the 28% newest English words

First recorded in 1865-70

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 5% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

absolute — Absolute means total and complete.
binding — A binding promise, agreement, or decision must be obeyed or carried out.
compulsory — If something is compulsory, you must do it or accept it, because it is the law or because someone in a position of authority says you must.
conclusive — Conclusive evidence shows that something is certainly true.
decisive — If a fact, action, or event is decisive, it makes it certain that there will be a particular result.