proper
prop-er
adjective
Conforming to established standards; suitable, correct, or respectable.
"Please use the proper tools for the job."
adverb
Used informally to emphasise that something is very good, significant, or complete.
"That was a proper brilliant film, wasn't it?"
Thesaurus
Synonyms: victorian, fitting, tight-laced, straitlaced, straight-laced, becoming, square-toed, correct, halal, strait-laced, prudish, decorous
Antonyms: improper