Hyper
Abnormally or extremely active
Hyperactive
Unlikely to cause an allergic reaction
Hypoallergenic
Activities outside the regular curriculum or course of study
Extracurricular
Form an idea of the amount, number, or value of; assess
Evaluate
Give intellectual, moral, and social instruction to someone
Educate
Exaggerated statements or claims not meant to be taken literally
Hyperbole
Practice of claiming to have moral standards or beliefs to which one's own behavior does not conform; pretense
Hypocrisy
Very unusual or remarkable
Extraordinary
A description and explanation of an idea or story
Exposition
A form or version of a published text
Edition
Breathe at an abnormally rapid rate, increasing the rate of loss of carbon dioxide
Hyperventilate
Low body temperature
Hypothermia
Cost is high, expensive, more than what is necessary or reasonable
Extravagant
Mentioning a number of things one by one in a list
Enumeration
Irrelevant or unrelated
Extraneous
High body temperature
Hyperthermia
The region immediately beneath the skin
Hypodermic
Extraditing a person accused or convicted of a crime
Extradition
Outstandingly bad; shocking
Egregious
Make worse
Exacerbate
High blood pressure
Hypertension
What if scenarios
Hypothetical
Add to an existing amount or an addition
Extra
Feeling of excitement, happiness, or elation
Exhilaration
Outgoing person
Extravert