6th Grade - Wordly Wise - Lesson 9

vital

adj. 1. necessary for continued life or prosperity 2. full of lively spirit 3. of the greatest importance

frugal

adj. careful in spending or using something

perpetual

adj. lasting or seeming to last forever or for a long time; continuous

drastic

adj. severe; extreme

extravagant

adj. spending, costing, or using more than is required extravagance n. 1. the quality of being wasteful or spending more than is necessary 2. a thing that costs more than one can afford

resource

n. 1. a supply that can be used when there is a need 2. skill in dealing with difficult situations resourceful adj. able to deal with difficult problems

peril

n. danger; something that is dangerous imperial v. to place in danger perilous adj. dangerous

impurity

n. something that is harmful or dirty

sustain

v. 1. to keep up; to support 2. to suffer; to undergo

aggravate

v. 1. to make worse 2. to anger or annoy aggravation n. 1. annoyance; exasperation 2. a source of annoyance or exasperation

contaminate

v. to harm by contact with something undesirable contamination n. the act of or result of contaminating

accumulate

v. to increase in number or amount; to pile up, collect, or gather

diminish

v. to make or become smaller or less; to reduce

substitute

v. to replace one thing or person for another n. something or someone that replaces another adj. acting in place of someone or something else

conserve

v. to save by using carefully conversation n. the saving or protection of something through careful use