Jun 19, 2026 · The meaning of IMPROPER is not proper. How to use improper in a sentence. Synonym Discussion of Improper.

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

3 days ago · Synonyms for IMPROPER: inappropriate, unsuitable, incorrect, wrong, unfit, unhappy, irrelevant, unfortunate; Antonyms of IMPROPER: appropriate, proper, correct ...

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

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

Apr 15, 2026 · 100 practical synonyms for improper, with quick usage tips and context, so you can choose the right word for writing, work, and daily speech.

Find 132 different ways to say IMPROPER, along with antonyms, related words, and example sentences at Thesaurus.com.

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

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

Learn what improper means with clear definitions, pronunciation, synonyms, and real-world examples. Simple explanations to help you use improper correctly.