This list focuses on 15 formal, academic vocabulary that is frequently used in IELTS readings and writings.

15 Must-Know Words for IELTS Reading Success

to interrupt the normal flow or activity of

e.g. The storm disrupted power and phone services throughout the town.

to continue resisting in spite of difficulty or hardship

e.g. The hikers endured long days of hiking in harsh conditions.

extremely important and necessary for life or continued existence

e.g. Regular exercise and a healthy diet are vital for good health.

for that reason; consequently; therefore

e.g. Food prices have been rising sharply hence many families are struggling financially.

to give official permission or approval for

e.g. The government sanctioned the construction of the new airport.

to constrain or compel by physical, moral, or legal force

e.g. He felt obliged to help his elderly parents with household chores.

become smaller or less important

e.g. Air pollution has diminished the ozone layer.

go beyond a limit or a maximum

e.g. Production exceeded expectations last quarter.

develop well and thrive

e.g. The business flourished under his leadership.

exposed to physical or emotional attack or harm

e.g. Children and the elderly are the most vulnerable in times of crisis.

make great efforts to achieve or obtain something

e.g. He has always striven for academic excellence.

worthy of remark or special attention; strikingly impressive 

e.g. She made a remarkable recovery from her illness.

become progressively worse

e.g. Her health has deteriorated significantly over the last year.

limit or restrain

e.g. The new laws restrict freedom of speech.

deeply felt or thoroughly understood

e.g. Her love and compassion had a profound effect on those around her.