Tafsir of Hud 11:10

ولين أذقناه نعماء بعد ضراء مسته

And if We give man a taste of mercy from Us, and then withdraw it from him, verily, he is despairing, ungrateful. But if We let him taste good (favor) after evil (poverty and harm) has touched him, Allah, the Exalted, informs about mankind and the blameworthy characteristics that he possesses, except for those believing servants upon whom Allah has bestowed His mercy. Allah explains that when any hardship befalls man, after he has experienced blessings, he is disheartened and he despairs of any good in the future. He denies and rejects (the bounties of) his previous condition. Thus, he behaves as if he has never seen any good and he loses all hope for relief (from his situation). Likewise, if any blessing befalls him after displeasure,

ليقولن ذهب السييات عني

he is sure to say, "Ills have departed from me.'' This means that he will claim that no harm or calamity will afflict him after this (blessing).

إنه لفرح فخور

Surely, he is exultant and boastful (ungrateful to Allah). This means that he is pleased with what he has in his hand and ungrateful (to Allah). At the same time he is boastful towards others. Allah, the Exalted, then says,