A person who takes a firm, uncompromising position on some policy.

A sales technique of pressuring the potential buyer to agree to a purchase. / A sales transaction which is challenging for the sales person to make; any act or object of persuasion which is challenging.

(music) A rock music genre marked by a heavy regular beat, high amplification, and usually frenzied performances.

(idiomatic) Resentment, anger.

Alternative form of hardcore

(computer hardware) One of a series of parallel magnetic recording disks in a drive unit, used for the recording and retrieval of digital information; used especially in personal computers.

In severe difficulties; greatly affected by a problem.

(idiomatic, usually with to-infinitive) Barely able. Having difficulty doing something. / (idiomatic) Experiencing financial difficulty or difficulty in surviving.

(US, slang, vulgar) Of a person: having a very difficult personality; being a perfectionist.

A firm stance or policy on which one will not compromise