Acrid
Bitter to the sense of taste or smell
Casualty
A person killed or injured in a war or accident
Congested
Overcrowded
Cope
To manage problems or difficulties successfully
Headlong
Reckless
Hurtle
To move with great force and speed
Impede
To get in the way of
Inevitable
Bound to happen
Initiate
To bring into use
Irate
Very angry
Lax
Not strictly enforced
Negligent
Failing to take proper care of
Smolder
To burn slowly without bursting into flames
Stringent
Strict
Throng
A crowd