"Futile" is an adjective that means "incapable of producing any useful result; pointless." So, we need to pick out an adjective that means something like "pointless." "Successful," then, cannot be the correct answer, because "successful" is an adjective that can mean "accomplishing an aim or purpose," making it an antonym, not a synonym, of "futile." "Useless," however, is an adjective that can mean "not fulfilling or not expected to achieve the intended purpose or desired outcome," and because "useless" is the answer choice closest in meaning to "futile," "useless" is the correct answer.

The word "trivial" meansunimportant. "Unimportant" is the best choice because it is a part of the definition of "trivial."

The word "vital" meansabsolutely necessary."Necessary" is the best choice because it is a part of the definition of "vital."

The word "significant" meansimportant.The best choice is "important," as it is a part of the definition of "significant." Considering the other choices, "focus," when used as a noun, meanscenter point,careful attention,orconcentration, a "sign" is anotice that bears a message,and "combined" meansjoined together.

Something that is essential isneeded; it is something youcannot do without. To further help you, irate meansvery angry; compassionate meansloving; edible meansable to be eaten; visible meansable to be seen.

"Absolute" is defined asunquestionable, such as when describing a king’s absolute authority. The best match, "supreme," meanshaving the final (unquestionable) say in thingsorof the highest rank in some category. So, "supreme" is the correct answer.

When something is "necessary," itmust be done. For instance, some people say that it is necessary to good health that we exercise at least five days a week. This means that good health requires such activity. Likewise, it is required that you have a large vocabulary to do well on the ISEE verbal sections. This means that you need to have a large vocabulary to do well. Therefore, something that is "required" is something that has been said to benecessary. "Requirements" are必要的事情s to be doneorthings that are needed. (The requirements for an application are all of its necessary components.)

"Major" meansimportant.

The correct answer is "harsh." Both "severe" and "harsh" meanstrictorhaving no leniency. The other words mean the opposite of "strict."

Something that is "smothering" isexcessive to the point of causing discomfort. Something that is "overbearing"imposes too much. "Overbearing" is the most similar to "smothering" because both refer to the characteristic of being too invasive.