A grammatical structure that adds additional information but is non-essential to the meaning of the sentence.

एक व्याकरणिक संरचना जो अतिरिक्त जानकारी प्रदान करती है लेकिन वाक्य के अर्थ के लिए अनिवार्य नहीं है।

English Usage: In the sentence "The car, which was red, sped past us," the phrase "which was red" is a restrictive adjunct.

Hindi Usage: वाक्य "गाड़ी, जो लाल थी, हमारे पास से तेजी से गुजरी," में "जो लाल थी" एक प्रतिबंधात्मक सहायक है।