Fetching details from the dictionary...

first of all; at once; right away
for now; for the time being; tentatively
anyway; at least
取りあえず水を一杯飲んでください。
First of all, please drink a glass of water.
取りあえず今日の仕事を終わらせよう。
Let's finish today's work for now.
取りあえず行動しよう。
Let's take action right away.