〜をものともせず
Undaunted by 〜をものともせず
Meaning
"Undaunted by ~", "in defiance of ~" — overcoming a hardship without being cowed.
Formation
[noun] + をものともせず（に）
Notes
Always admiring, so it describes someone else's courage and is not used of the speaker. The noun it takes is a genuine obstacle: 困難, 嵐, けが, 反対.
Examples
彼（かれ）はけがをものともせず、試合（しあい）に出（で）ました。
Undaunted by his injury, he played in the match.
Breakdown
嵐（あらし）をものともせず、船（ふね）は港（みなと）を出（で）ました。
In defiance of the storm, the ship left port.
Breakdown
周囲（しゅうい）の反対（はんたい）をものともせず、彼女（かのじょ）は夢（ゆめ）を追（お）いました。
Undeterred by the opposition around her, she chased her dream.
Breakdown
高齢（こうれい）をものともせず、祖父（そふ）は山（やま）に登（のぼ）ります。
Undaunted by his age, my grandfather climbs mountains.
Breakdown
困難（こんなん）をものともせず、彼（かれ）らは研究（けんきゅう）を続（つづ）けました。
In the face of hardship, they carried on their research.
Breakdown
⚠️ Often confused with
〜はさておき
Setting aside 〜はさておき
"Setting ~ aside", "leaving ~ for later" — shelving one topic to get to a more urgent one.
〜もかまわず
Without regard for 〜もかまわず
"Without caring about ~", "regardless of ~" — ignoring something one ought to mind.
〜を問わず
Irrespective of 〜を問わず
"Regardless of ~", "irrespective of ~" — the variable makes no difference.