Adjective

(en adjective)

unsuitable to needs or circumstances; inappropriate; inapt

Not in keeping with conventional mores or good manners; indecent or immodest

Not according to facts; inaccurate or erroneous

Not consistent with established facts; incorrect

Not properly named; See, for example, improper fraction

(obsolete) Not specific or appropriate to individuals; general; common.

* J. Fletcher

Not to be adorned with any art but such improper ones as nature is said to bestow, as singing and poetry.

Adjective

(en-adj)

Debased, uncouth, distasteful, obscene.

* {{quote-book

, year= 1551 , year_published= 1888 , author= , by= , title= A New English Dictionary on Historical Principles: Founded Mainly on the Materials Collected by the Philological Society. , url= http://books.google.com/books?id=JmpXAAAAYAAJ&pg=PA217 , original= , chapter= , section= Part 1 , isbn= , edition= , publisher= Clarendon Press , location= Oxford , editor= , volume= 1 , page= 217 , passage= Also the rule of false position, with dyuers examples not onely vulgar , but some appertaynyng to the rule of Algeber. }}

* The construction worker made a vulgar suggestion to the girls walking down the street.

(classical sense) Having to do with ordinary, common people.

* Bishop Fell

It might be more useful to the English reader to write in our vulgar language.

* Bancroft

The mechanical process of multiplying books had brought the New Testament in the vulgar tongue within the reach of every class.

* 1860 , G. Syffarth, "A Remarkable Seal in Dr. Abbott's Museum at New York", Transactions of the Academy of Science of St. Louis? , age 265

Further, the same sacred name in other monuments precedes the vulgar name of King Takellothis , the sixth of the XXII. Dyn., as we have seen.