severe

definition: 
extreme;harmful
sentence: 
Henry Bartlam was only six weeks old when he suffered a severe asthma attack which nearly killed him
difficulty: 
easy
toefl frequency: 
2
toefl classification: 
adverb: 
adjective: 
adverb sentence: 
adjective sentence: 
verb: 
verb sentence: 
noun: 
severity
noun sentence: 
The severity of his condition will not be known until the test results are studied