When something is "ruffled", it is literally taken out of order or arrangement. We often speak of "ruffling" someone's hair or some other semi-arranged set of items. As an emotional state, "ruffled" means disturbed or not calm. In contrast to this, the term "placid" means calm with little disturbance or change.

When someone "plods along," he or she moves at a slow speed, often as though he or she has a heavy burden on his or her back. Do not be tempted to pick an answer like "joyous." Just because someone is plodding, he or she does not necessarily do this because of being depressed or sad. The best antonym is "expeditious," meaning done quickly and efficiently. To "expedite" a process is to make it happen more quickly.

The word "brisk" can refer to cool weather, but it can also be used as an adjective describing fast movement. The adverb "briskly" means quickly or with energy. A brisk motion is one that is fast, and walking briskly means walking quickly with haste. In contrast to this, a leisurely pace is one that is slow—taking its time. Leisure is the free time used for enjoyable activities. Such time is not usually stressful. Therefore, "leisurely" activities are quite slow in their pace.

The word "brisk" can refer to cool weather, but it can also be used as an adjective describing fast movement. The adverb "briskly" means quickly or with energy. A brisk motion is one that is fast, and walking briskly means walking quickly with haste. In contrast to this, a leisurely pace is one that is slow—taking its time. Leisure is the free time used for enjoyable activities. Such time is not usually stressful. Therefore, "leisurely" activities are quite slow in their pace.

When someone "plods along," he or she moves at a slow speed, often as though he or she has a heavy burden on his or her back. Do not be tempted to pick an answer like "joyous." Just because someone is plodding, he or she does not necessarily do this because of being depressed or sad. The best antonym is "expeditious," meaning done quickly and efficiently. To "expedite" a process is to make it happen more quickly.

When something is "ruffled", it is literally taken out of order or arrangement. We often speak of "ruffling" someone's hair or some other semi-arranged set of items. As an emotional state, "ruffled" means disturbed or not calm. In contrast to this, the term "placid" means calm with little disturbance or change.

We are looking for something that simply implies irregularity as opposed to regularity. When something is done inconsistently, it is done without a regular manner or mode. A consistent tempo is one that is regular and repeated. Therefore, "inconsistently" is a good antonym for "regularly."

To exasperate someone is to make that person completely tired and irritated about something. For instance, "The arduous and tedious process of reviewing the details of the exam exasperated the young man, for he knew all of the answers already." An exasperated person is likely quite angry, so "delighted" is an excellent antonym for this word.

The word "senescent" is related to roots from which we get words like "senior" and "senator," the latter really describing a person who is supposed to be old and wise. To be "senescent" is to be aged, often with the effects of deterioration that come with the passage of time. Although the word "adolescent" can be a bit negative, it does not have to be such. It can merely mean that someone is in the period of youth in which he or she is passing to adulthood. Among the options provided, this is the best temporal contrast to "senescent."

The word "senescent" is related to roots from which we get words like "senior" and "senator," the latter really describing a person who is supposed to be old and wise. To be "senescent" is to be aged, often with the effects of deterioration that come with the passage of time. Although the word "adolescent" can be a bit negative, it does not have to be such. It can merely mean that someone is in the period of youth in which he or she is passing to adulthood. Among the options provided, this is the best temporal contrast to "senescent."