improper
Translation
improper, unsuitable, inappropriate
Examples
It is improper to talk during the movie.
It is improper to talk during the film.
He used improper grammar in his essay.
He used improper grammar in his essay.
Grammar Patterns
((to-inf)) not suitable or correct to do (sth.) It is improper to talk during the movie.
((for sb.)) ((to-inf)) not suitable for (sb.) to do (sth.) It is improper for children to watch that show.
Similar Words
Synonyms: inappropriate, unsuitable; Antonyms: proper, appropriate
Etymology
From the prefix 'im-' (not) and 'proper' (correct, suitable). Literally 'not proper'.
Memory Tips
The prefix 'im-' often means 'not', as in 'impossible' (not possible). So, 'improper' is 'not proper'.