Final answer:
To sort the words into categories of positive, negative, and neutral, words like 'lively,' 'clever,' and 'intelligent' can be categorized as positive, words like 'hectic,' 'cunning,' and 'stingy' can be categorized as negative, and words like 'economical,' 'energetic,' and 'frugal' can be categorized as neutral.
Step-by-step explanation:
The words can be sorted into three categories: positive, negative, or neutral. In the positive category, we have words like lively, clever, and intelligent. These words convey a positive meaning and are used to describe people or things in a positive light. In the negative category, we have words like hectic, cunning, and stingy. These words have a negative connotation and are used to describe negative traits or situations. Finally, in the neutral category, we have words like economical, energetic, and frugal. These words do not have a strongly positive or negative meaning, and can be used to describe things in a more neutral or objective way.