We should resurrect the positive forms of some words that are usually used only in their negative forms. The sentences below are suggested as models for a more positive outlook.

incorrigible (Latin, in-, not + corrigĕre, correct) -- “He is corrigible,” said Madge hopefully. “Every moonlit evening my teenage son goes out and comes home at three in the morning as a werewolf, but then insists on changing back to his human form.”

indelible (Latin, in-, not + dēlēre, blot out, efface + -(a)ble, able to (be)) – Sure enough, by my tenth high school reunion I had forgotten all about her; she was the sort of girl that left a delible impression on you.

inevitable (Latin, in-, not + ēvītāre, avoid + -able) -- As he eventually realized, it was evitable that sooner or later he would start flirting with the boss’s daughter and get himself fired.

infant (Latin, infāns, infāntem, child, from in-, not + fāns (fārī), speaking) -- At the age of twenty months my little Alison finally became a real fant when she said, “Want mommy open this!”

ignorance = i(n)gnorance (Latin, in-, not + gno-, knowing + -ance, state of) -- In full gnorance of the risk he was taking, he forged the application papers for a position in the National Security Agency.

impertinence (Latin, im(in)-, not + pertinēre, to be suitable) -- “I will no longer stand for your pertinence!” shouted his mother. “Either you learn to swear and insult me like a true son of a mountain man, or find another place to live!”

nonchalant (French, nonchalant, not warmed, from Latin non, not + calēre, to be warm, to be roused with emotion) -- Surrounded by so many people, he may have preferred not to reveal his feelings; but his chalant demeanor betrayed how much his girlfriend’s thoughtless remark had hurt him.

unscathed (u-, un-, not + Old Norse, scatha, hurt, injure, damage) – In spite of his skill with the broadsword, he emerged from the skirmish thoroughly scathed.