American Heritage Dictionary
(2)
Century Dictionary
(3)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Both were inadvertent, and I emailed both authors afterwards.— Andrew Leigh
To the mainstream media - now trying either to explain away what authorities insist is a felony by terming Berger's theft "inadvertent," or simply avoiding covering the incidents altogether - when Democrats cross the line and commit a crime it is a "mistake."
Apologizing for an error - inadvertent or deliberate - comports with good practices provisions of the Society of Professional Journalists Code of Ethics.— CounterPunch
These were sometimes inadvertent, as with his decision to drop the party's longstanding commitment to expanding elite state-funded grammar schools, which were often criticized by the left as being socially divisive and unfair.— The American Prospect Articles

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.
Recently looked upnad · an · bazooka · cling · quivers |
Recent Favoritespygopagus · sanglant · Astacus · sweetbread · qualms |
Recent PronunciationsDer dicke Dachdecker deckte dir dein Dach, drum dank dem dicken Dachdecker, dass der dicke Dachdecker dir dein Dach deckte. · weitläufig · und wenn sie nicht gestorben sind, so leben sie noch heute · redescheu · selbstverständlich |