Ielts vocabulary Masterclass book + ielts listening & Reading Dictionary: Dominate Proficiency Level Vocabulary for ielts listening, Reading, Writing & Speaking

Insipid: MEANING: Lacking flavour, weak or tasteless
SENTENCE: The first band to play at the concert was a little insipid.
Insularity: MEANING: The quality of being isolated or detached
SENTENCE: The 1950s were a decade of conservatism and insularity.
Intractable: MEANING: Difficult to manage or mould
SENTENCE: The kindergarten kids were intractable and the teacher grew
frustrated.

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Intransigence: MEANING: Unwillingness to change one' beliefs;
stubbornness
SENTENCE: Despite many calls for mercy, the judge remained
intransigent, citing strict legal precedence.