をものともせず (wo-mono-to-mo-sezu): Undeterred by; in defiance of
～をものともせず (wo-mono-to-mo-sezu)
Meaning
Undeterred by; in defiance of
Formation and usage
N + をものともせず（に）
Notation: N = noun; V dictionary = dictionary-form verb; V stem = the stem before ます; plain clause = plain-form clause; negative stem = the form before ない. Follow the attachment shown above.
Explanation
Overcomes a major obstacle undaunted, often with admiration.
Examples
けがをものともせず、彼は目標を達成した。
Undeterred by an injury, he achieved his goal.
大雨をものともせず、彼は目標を達成した。
Undeterred by heavy rain, he achieved his goal.
周囲の反対をものともせず、彼は目標を達成した。
Undeterred by opposition from others, he achieved his goal.
資金不足をものともせず、彼は目標を達成した。
Undeterred by a lack of funds, he achieved his goal.
人手不足をものともせず、彼は目標を達成した。
Undeterred by a shortage of staff, he achieved his goal.
How related patterns differ
が気になる is a spontaneous concern; に気をつける is deliberate caution. に備えて prepares; に任せる entrusts. にかこつけて uses a pretext, を押して overcomes a barrier, をものともせず is undaunted, をよそに disregards, and にかまけて neglects other duties.