This is the 2890th most frequent Japanese word.
ひたすら
"ひたすら" means "earnestly," "single-mindedly," or "steadily with intense focus."
In this sentence, "ひたすら" expresses perseverance and intense focus on the activity of solving math problems.
彼は毎日ひたすら数学の問題を解いています。
He is diligently solving math problems every day.
Here, "ひたすら" conveys an unrelenting focus on the act of staring at the sky.
ひたすら空を見上げて、彼は何かを考えているようでした。
He was looking up at the sky intently, as if he was thinking about something.
In this example, "ひたすら" highlights the aspect of unwavering commitment and effort toward achieving personal objectives.