6th Grade Vocabulary Words - List 13
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| Word | Definition | Practice Sentence | Synonyms | Antonyms | Part of Speech Description |
|---|---|---|---|---|---|
| rationalized | Explained; justified. | He rationalized the disappearance of his glasses with a wild story about a crow stealing them. | excused, accounted for, defended | Verb | |
| courageous | Not discouraged by danger; brave. | The courageous leader showed no fear in the face of danger. | bold, daring, gutsy | fearful, cowardly, afraid | Adjective |
| apprehensive | Fearful about the future. | She was apprehensive about following the cat into the abandoned house. | anxious, concerned, uneasy | certain, composed, confident | Adjective |
| rugged | Having strong, rough features. | The rugged lumberjack is sitting on a log, eating his lunch. | brawny, tough, burly | weak, frail | Adjective |
| impede | Slow or prevent someone or something from making progress. | Smoke will impede your ability to breathe in a burning building. | block, obstruct, interfere | aid, allow | Verb |
| amended | Minor updates made to text. | The law was amended to clarify its meaning. | revised, modified, corrected | Verb | |
| plummet | Fall or drop quickly. | They threw rocks into the canyon and watched them plummet into the river below. | crash, descend, dive | ascend, rise | Verb |
| prevalent | Widespread or common. | Handshakes have become less prevalent since the pandemic. | accepted, everyday, normal | irregular, uncommon, rare | Adjective |
| hasty | Acting with excessive urgency. | He was too hasty when he agreed to take on extra responsibilities. | abrupt, impulsive, sudden | cautious, sluggish | Adjective |
| certainly | Without doubt; surely. | You're certainly in a grumpy mood! | absolutely, unquestionably, definitely | doubtfully, possibly | Adverb |
| hefty | Mighty; powerful. | She slammed the hefty book down on the table with a loud thump. | colossal, heavy, robust | light, little | Adjective |
| mediocre | Not very good; tolerable. | Our vacation was only mediocre; it seemed like more work than fun. | inferior, ordinary, unremarkable | exceptional, superior, unusual | Adjective |
| etiquette | Rules or customs that dictate polite behavior in social situations. | She showed disregard for etiquette by wearing sneakers to a formal event. | manners, politeness, courtesy | discourtesy, impoliteness, impropriety | Noun |
| colossal | Very large. | The pile of presents was colossal and almost completely obscured the tree. | enormous, gigantic, huge | little, minuscule, tiny | Adjective |
| inflate | Fill with gas or air. | He was unable to inflate the pool toy because it had a hole. | bloat, expand, enlarge | shrink, reduce, contract | Verb |
Take a look at other vocabulary lists for sixthgrade.
sixthgrade Vocabulary Lists