improper
/ɪmˈprɒpə
/adjective
1Not in accordance with accepted standards, especially of morality or honesty: the improper use of public funds it was considered improper to leave one’s house on Christmas Day...
- The fall in stock market values is attributed mainly to concerns about improper accounting standards.
- If there's a potential conflict of interest or improper influence, the public has a right to know.
- Many acts may look improper and unethical, yet there may have been a good reason for them.
Synonyms
inappropriate, unacceptable, unsuitable, unprofessional, irregular, illegitimate, against the rules;
unethical, corrupt, immoral, dishonest, dishonourable, unscrupulous
informal crooked, not cricket
indecent, risqué, off colour, indelicate, suggestive, naughty, ribald, earthy, Rabelaisian, smutty, dirty, filthy, vulgar, crude, rude, obscene, lewd, pornographic
informal blue, raunchy, steamy, near the knuckle/bone, nudge-nudge
British informal fruity, saucy
1.1Lacking in modesty or decency: an improper suggestion...
- She had spoken without being asked a question, which was improper and impolite.
- The doctor, a married father of three, accepts meeting Miss A outside work but denied any improper conduct took place.
- Our children unfortunately are not generally made aware that behaving rudely is improper.
Synonyms
unseemly, indecorous, unbecoming, unfitting, out of keeping, unladylike, ungentlemanly, indiscreet, indelicate, impolite, undignified;
indecent, unwholesome, immodest, immoral;
outrageous, scandalous, shocking, offensive, distasteful;
forward, bold, brazen, shameless
informal fresh, cheeky
Origin
Late Middle English: from French impropre or Latin improprius, from in- 'not' + proprius 'one's own, proper'.