proper suggests a suitability through essential nature or accordance with custom.

1. used to mean 'real' You use proper in front of a noun to emphasize that someone or something really is the thing referred to by the noun. It's important to have a proper breakfast in the …

PROPER definition: 1. real, satisfactory, suitable, or correct: 2. showing standards of behaviour that are socially…. Learn more.

Definition of proper adjective from the Oxford Advanced Learner's Dictionary. [only before noun] (especially British English) right, appropriate or correct; according to the rules. We should have …

4 days ago · Excellent, of high quality; such as the specific person or thing should ideally be.

Proper definition: Characterized by appropriateness or suitability; fitting.

(immediately postpositive) (of an object, quality, etc) referred to or named specifically so as to exclude anything not directly connected with it: his claim is connected with the deed proper