bring a knife to a gunfight

Verb

 * 1)  To enter into a confrontation or other challenging situation without being adequately equipped or prepared.

Translations

 * Chinese:
 * Mandarin: 拿著雞蛋碰石頭, 拿着鸡蛋碰石头
 * Finnish: lähteä soitellen sotaan
 * Polish: przychodzić nieprzygotowany, przyjść nieprzygotowany
 * Russian: про́тив ло́ма нет приёма
 * Spanish: a la guerra sin fusil