list of synonyms of word red flag

• flag (generic term)
• signal flag (generic term)
• alarm (generic term)
• alert (generic term)
• warning signal (generic term)
• alarum (generic term)

• emblem (generic term)
• allegory (generic term)

• annoyance (generic term)
• annoying (generic term)
• irritation (generic term)
• vexation (generic term)