also: あったら
adverb
alas; regrettably; tragically
Literary or old-fashioned expression of regret, similar to 'alas' or 'what a pity'. Not used in everyday conversation.
あたら若い命を散らした。
Alas, he lost his young life.
あたら名作が戦火で失われた。
Regrettably, the masterpiece was lost in the war.