"AQUA/HYDRA" - WATER
"mal" - bad or badly, wrong, ill
malady: sickness, bad health
malefactor: person who does the wrong thing; evil person
malevolent: wishing evil or bad will for others; mean
malfeasance: bad conduct/wrongdoing by a public official
malfunction: to function imperfectly or badly
malice: desire to do something bad to someone else; doing something that is wrong on purpose
malignant: very bad or harmful; likely to cause death
malnutrition: bad eating habits that result in poor health
malodorous: stinky; have a bad smell
malpractice: an instance of bad conduct or treatment from a doctor or other professional
"contra/counter" - opposite/against
contraband - anything that is against the law to buy or sell
contradict - to express the opposite
contrarian - a person who thinks differently from other or does the opposite of what is expected.
contrary - completely different; opposite in nature, opinion, or action
contrast - to look at different things to see how they are opposites or not related.
counterbalance - a weight used to balance an opposite weight.
counterclockwise - in the direction that is opposite of the direction the hands on the clock move.
counterexample - an example used to support a claim or statement that is the opposite of another claim.
counterfeit - being the opposite of real; fake
counterintuitive - goes against your gut feeling or common sense.
"phobos (hatred or fear)