仕事一途しごといちず

noun, na-adjective, noun which may take the genitive case particle 'no'

devoted to work; workaholic; single-mindedly focused on one's job

Describes a person who is completely absorbed in their work, often to the exclusion of other interests. Can be used as a noun or adjectivally with な or の.

• 彼かれは仕し事ごと一途いちずで、休きゅう日じつもほとんど会かい社しゃにいる。

  He is so devoted to his work that he is at the office even on most holidays.

• 仕し事ごと一途いちずな生せい活かつを送おくっていると、家か族ぞくとの時じ間かんが減へってしまう。

  If you lead a workaholic life, you end up with less time for your family.