Irrevocable (ناقابل تنسیخ) means not able to be changed, reversed, or recovered. 'Unalterable' (ناقابل تبدیل) is a direct synonym.

Invincible (ناقابل شکست) means too powerful to be defeated or overcome. 'Impregnable' (ناقابل تسخیر) (unable to be captured) is a strong synonym. 'Vulnerable' (کمزور) is the antonym.

To be invested (نوازا) with a quality or power means to be 'endowed' (عطا کرنا) with it; to be formally given it.

Inversion (الٹ) is the action of inverting something or the state of being inverted. It is a 'reversal' (الٹ پلٹ) of the normal order or position.

Invalid (غلط) can mean 'unlawful' (غیر قانونی) (like an invalid license) or, in logic, 'not true' (جو سچ نہ ہو) or not sound (an invalid argument).

Inured (عادی) means to become accustomed to or hardened against something unpleasant. 'Sensitive' (حساس) means quick to respond to stimuli. (Note: These words are typically antonyms, but 'Sensitive' is the answer provided in the list).

Intuitive (وجدانی) means using or based on what one feels to be true without conscious reasoning. 'Instinctive' (فطری) is a direct synonym.

To intrude (مداخلت کرنا) means to put oneself into a place or situation where one is unwelcome, which is 'to be in the way' (راستے میں آنا) or trespass.

Intrinsic (باطنی) means belonging naturally or essentially to something (inherent). 'Gained' (حاصل کردہ) is an antonym (extrinsic). The provided options are poor, but 'Undivided' (غیر منقسم) is chosen, perhaps implying an intrinsic quality is part of the 'undivided' whole of an object.

Intricate (پیچیدہ) means very 'complicated' (الجھا ہوا) or detailed. 'Dispassionate' (غیر جذباتی) means impartial.