The prefix "a-" adds the meaning of not, without, or opposite to. The opposite of “moral” is “amoral.” If you are “moral,” you base your actions on what you think is right and good; if you are “amoral,” you base your actions on what you think is bad or you just do whatever you like. The opposite of “active” is “passive,” where "active" means engaged or in action. If you are “passive” you do nothing or do very little. To further help you, “reclusive” means you prefer to be alone or you shy away from society; “hopeful” means full of hope; “silent” means quiet, without noise.

The prefix "un-" means not. "Unreal" means not real, or "fake," so "unreal" and "fake" are synonyms because they have the same meaning. To solve the analogy, you need to pick out an answer choice that means the same thing as "uncertain." "Uncertain" means not certain or unknown, so "unknown" is the correct answer.

The prefixes "in-," "im-," and "dis-" are all negationprefixes. This means they take the original meaning of the word and cause it to mean the opposite. “Credulous” means believing, naïve, gullible, so “incredulous” must mean disbelieving, skeptical, doubtful. To solve this analogy, you have to determine which of these answer choices is the opposite of “credit,” which means to give recognition for some achievement. The correct antonym is “discredit,” which means harm the reputation of, prove wrong. To provide further help, “dismantle” means to take apart; “innate” means natural, inherent; “impossible” means not possible.

The suffix "-cycle" suggests a wheeled vehicle and the prefixes tell you how many wheels that vehicle has. So a “tricycle” is a three-wheeled vehicle and a “unicycle” is a one-wheeled vehicle. Similarly, a "bicycle" is a two-wheeled vehicle.

The prefix "uni-" means related to the number one, and the prefix ­"tri-" means related to the number three. So, for example, a “triangle” is so named because it has three sides and three angles, and a “tricycle” is called such because it has three wheels, as opposed to a "bicycle," which has two wheels and a “unicycle,” which has one wheel. In this example, "­uni-" is the prefix that tells you the word is related to the number one, and "cycle" tells you the word is related to something with wheels. Since a unicycle has one wheel and a tricycle has three wheels, "three" is the correct answer.

Here, the prefix "un-" applied to the word "common" results in the word "uncommon," which means the opposite of common. Something that is uncommon is therefore "rare." 

Given that "uncommon" and "rare" mean the same thing, the correct answer choice will be one in which the two words also mean the same thing. Something that is "spontaneous" is not planned. Therefore, the answer choice "unplanned is to spontaneous" is the correct answer.

The prefix “tele-“ means over a long distance, so a “telephone” is a device that you use to call over a long distance and a “telescope” is a device that you used to see over a long distance. Notice how the root “phone” means having to do with a device that relates to sound, as in “megaphone” or “gramophone,” and the root “scope” means having to do with a device that relates to seeing, as in “microscope” or “periscope.”

To solve this analogy, you have to understand the meaning of the prefixes "un-" and "dis-." Both prefixes are used to negate the meaning of a word. They take the original meaning and make it the opposite, so "unpleasant" means not pleasant. "Nice" is the opposite of "unpleasant," so to solve this analogy, you need to find the opposite of "dishonest." "Dishonest" means not honest, so the correct answer must mean something like "honest." The correct answer is therefore "truthful." To provide further help, "terrifying" means scary, and "serene" means peaceful.

This analogy requires you to use your knowledge of negating prefixes. "Un-" and "dis-" both mean not; they each take the meaning of the original word and make it mean the opposite. So "disconnected" means not connected. "Separated" is very similar to this meaning, so to solve this analogy, you have to find a word that is similar in meaning to "unfulfilled." "Unfulfilled" means not fulfilled or not satisfied, so the correct answer is "dissatisfied." To provide further help, "misplaced" means lost, "misunderstood" means incorrectly understood, and "satisfied" means happy with something.

"Loyal" is an antonym of "disloyal," so you need to pick out an answer choice that is an opposite of "dull." "Dull" can mean either boring or not sharp, so "exciting" is the correct answer, because "exciting" is an opposite of "boring." To help you, "munificent" means generous; and "guilty" means feeling bad about something bad that you did.