とくさく
good policy; wise policy; best plan
Common word
Noun
彼かれが行いくのが得策とくさくだ。
It is advisable for him to go.
iPhoneは来月らいげつ新あたらしいのが出でるから、今いま買かうのは得策とくさくじゃないと思おもうよ。
There's a new iPhone coming out next month so I think that it's not such a bright idea to buy one now.