unseldom

unseldom

(ʌnˈsɛldəm)
adv
regularly
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
Collins said anything of which his wife might reasonably be ashamed, which certainly was not unseldom, she involuntarily turned her eye on Charlotte.
Collins said anything of which his wife might reasonably be ashamed, which certainly was not unseldom, she involuntarily turned her eye on Charlotte," but can only occasionally discern "a faint blush" (156).