Question

synonym of longstanding​

Answer 1

Explanation:

Synonym of longstanding is -- well established or fixed

Hope it helps you mate :)

Answer 2

$\huge\rm\underline\red{long-standing}$

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SIMILAR WORDS

• well established
• long-established
• established
• fixed
• time-honoured
• time-hallowed
• abiding
• enduring
• long-lived
• surviving
• persistent
• prevailing
• durable
• perennial
• firm
• constant
• deep-rooted
• steady
• stable
• staunch