“Money is plenty this summer.” Plenty is a noun and should not be used as an adjective. Therefore “money is plentiful this summer.” Shakespeare says, “If reasons were as plenty as blackberries,” etc., but words have settled into more definite grooves since Shakespeare’s time. “This house is plenty large enough.” Neither is plenty an adverb. Say, “This house is quite large enough,” or, simply, large enough.
About, around
“She was pleased with the conversation about her.” Use “around her.”
“She was pained by the conversation about her.” Use “concerning her.”
Overlook, Oversee
This word means to look down upon from a place that is over or above; as, “From the top of the Washington monument you can readily overlook the city.” But it also means to look over and beyond an object in order to see a second object, thus missing the view of the first object; hence, to refrain from bestowing notice upon, to neglect. The confounding of these two ideas begets ambiguity, as “Brown’s business was to overlook the workmen in the shop.” His business was to oversee or superintend them, and not to neglect or overlook them.
To revolt is to rebel, to renounce allegiance, but the participial form revolting also means repugnant, loathsome. In the sentence, “A band of revolting Huns has just passed down the street,” we should be in doubt whether the speaker referred to their acts against the government or to their appearance. The use of the word rebellious in the former sense, and of disagreeable or disgusting, or the stronger adjectives given above, for the latter meaning, would make the sentence clear.
Unexampled
Such adjectives as unexampled, unparalleled, unprecedented, do not admit of comparison, hence such expressions as the most unexampled bravery, the most unparalleled heroism, etc., should be avoided.