In order that you may warn a people whose forefathers were not

﴿لِتُنذِرَ قَوۡمٗا مَّآ أُنذِرَ ءَابَآؤُهُمۡ فَهُمۡ غَٰفِلُونَ ﴾
[يسٓ: 6]

In order that you may warn a people whose forefathers were not warned, so they are heedless

﴿لتنذر قوما ما أنذر آباؤهم فهم غافلون﴾ [يسٓ: 6]

Al Bilal Muhammad Et Al
That you may advise a people whose parents had received no advice, and who therefore remain heedless

Ali Bakhtiari Nejad
so that you warn a people whose fathers were not warned, therefore they are negligent

Ali Quli Qarai
that you may warn a people whose fathers were not warned, so they are oblivious

Ali Unal
So that you may warn a people whose (near) forefathers were not warned, and who are therefore heedless (of the truth and falsehood)

Hamid S Aziz
That you may warn a people whose fathers were not warned, and so they are heedless

John Medows Rodwell
That thou shouldest warn a people whose fathers were not warned and therefore lived in heedlessness

Literal
To warn/give notice (E) (to) a nation, their fathers were not warned/given notice, so they are ignoring/neglecting/disregarding

Mir Anees Original
that you may warn a people whose fathers were not warned so they are heedless

Mir Aneesuddin
that you may warn a people whose fathers were not warned so they are heedless