advisedly, by choice, by design, consciously, deliberately, designedly, expressly, from spite, intentionally, on purpose, out of spite, purposefully, purposely, purposively, voluntarily, wilfully, willfully — ことさら, わざと, 意図的, 態々, 態と, 態態, 故意に, 殊更[Ant.]

accidentally (adv.) • inadvertently (adv.) • involuntarily (adv.) • unintentionally (adv.) • unwittingly (adv.) • たまさか (adv.) • たまたま (adv.) • つい ( ) • ついつい (adv.) • なんとなく (adv.) • はからずも (adv.) • ひょいと (adv.) • ふいと (adv.) • ふっと (adv.) • ゆくりなく (adv.) • 何となく (adv.) • 偶 (adv.) • 偶々 (adv.) • 偶さか (adv.) • 偶偶 (adv.) • 偶然 (adv.) • 偶発的 (adv.) • 図らずも (adv.) • 巧まずして (adv.) • 思いがけず (adv.) • 思い掛けず (adv.) • 思い掛ず (adv.) • 思わず (adv.) • 思掛けず (adv.) • 思掛ず (adv.) • 端無く (adv.) • 計らずも (adv.) • 適々 (adv.) • 適さか (adv.) • 適適 (adv.)