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

IMPROPERLY definition: 1. in a way that is dishonest or against a law or a rule: 2. in a way that is unsuitable or not…. Learn more.

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

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

Dec 28, 2025 · improperly English Etymology From Middle English improprelich, impropreliche, impropurly, inproperlye; equivalent to improper +‎ -ly or im- +‎ properly.

Jan 11, 2026 · in an improper way "Improperly." Vocabulary.com Dictionary, Vocabulary.com, https://www.vocabulary.com/dictionary/improperly. Accessed 11 Jan. 2026. Copy citation

Improperly definition: In an <a>improper</a> manner; not <a>properly.</a>.