The meaning of IMPROPER is not proper. How to use improper in a sentence. Synonym Discussion of Improper.

Improper definition: not proper; not strictly belonging, applicable, correct, etc.; erroneous.. See examples of IMPROPER used in a sentence.

IMPROPER definition: 1. dishonest and against a law or a rule: 2. unsuitable or not correct for a particular use or…. Learn more.

Define improper. improper synonyms, improper pronunciation, improper translation, English dictionary definition of improper. adj. 1. Not suited to circumstances or needs; unsuitable: …

Definition of improper adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

3 meanings: 1. lacking propriety; not seemly or fitting 2. unsuitable for a certain use or occasion; inappropriate 3. irregular.... Click for more definitions.

erroneous: He drew improper conclusions from the scant evidence. not in accordance with propriety of behavior, manners, etc.: improper conduct at a funeral. unsuitable or …

Nov 30, 2025 · improper (comparative more improper, superlative most improper) Unsuitable to needs or circumstances; inappropriate; inapt. Not in keeping with conventional mores or good …

Factsheet What does the adjective improper mean? There are five meanings listed in OED's entry for the adjective improper, one of which is labelled obsolete. See ‘Meaning & use’ for …

IMPROPER meaning: 1 : not proper, right, or suitable: such as; 2 : not correct