ひたすら
只管
hitasura

Adverb
na-Adjective

1. intently; single-mindedly; devotedly; solely; earnestly; with all one's heart

Usually Written in Kana
かれはひたすら成功せいこうのぞんで懸命けんめいはたらく。
karewa hitasura sēkōo nozonde kemmēni hataraku.
He works hard because he is anxious to succeed.
Other forms: