1. 10th Grade Vocabulary
Unit 1

2. Latin VINCERE, VICTUM “to conquer”

3. 1. Invincible (adj.) unable to be conquered
At this point in his career, fighter Muhammad Ali appeared to be invincible.
Synonym: invulnerable Antonym: Vulnerable

4. 2. Provincial (adj.) Limited in knowledge of the world; narrow-minded
Belle didn’t like small-town life and wanted much more than a provincial life.
Antonym: sophisticated

5. 3. Evince (v.) to establish; to reflect the truth of
An attorney’s job is to evince the truth of his client’s alibi.

6. Latin DUCERE, DUCTUM “to lead”

7. 4. Conducive (adj.) supportive; encouraging; helping to bring about
Soft music and candlelight are conducive to romance!
Synonym: helpful, favorable

8. 5. Induce (v.) to lead toward some action
When a child swallows a poison, a doctor will often suggest ipecac to induce vomiting and get the poison out.
Synonym: persuade antonym: discourage

9. 6. Deduce (v.) to draw a conclusion from fact; to infer
Sherlock Holmes, the super sleuth, was able to deduce the villain’s motive and his plan from the evidence.
Synonym: conclude

10. Latin TRAHERE, TRACTUM “ to drag”

11. 7. Protracted (adj.) Extended in time; prolonged
The war on terror has been a protracted effort of the United States and its allies.
Synonym: lingering Antonym: brief

12. 8. Intractable (adj.) stubborn; obstinate; hard to move forward.
A mule is an intractable animal which is difficult to persuade to do anything against its will.
Synonym: immorale Antonym: malleable

13. 9. Retract (v.) To draw back; withdraw
Milly had to retract the awning before the storm blew in.
Synonym: repeal

14. “to seek aggressively, to assail, to rush
Latin PETERE, PETITUM
“to seek aggressively, to assail, to rush

15. 10. Petulant (adj.) irritable; short-tempered
Maggy is a petulant child whose temper is intolerable for the adults around her.

16. 11. Impetuous (adj.) acting passionately and without forethought
Fighting is an impetuous behavior that a child must learn to control.
Synonym: rash Antonym: careful

17. 12. Impetus (n.) That which drives one; momentum
Dissatisfied customers are often the impetus for change at the corporate level.
Synonym: stimulus