1. to suggest or hint at something indirectly, especially something unpleasant
2. to gradually introduce oneself into a position or situation, often in a subtle or cunning way

Examples

• She didn’t directly accuse him, but she insinuated that he was lying.
• The article insinuates that the company knew about the safety issues.
• He managed to insinuate himself into the exclusive social circle.
• The spy insinuated herself into the organization over several months.
• Are you insinuating that I made a mistake?
• The politician insinuated his way into the governor’s inner circle.
• Her comments insinuated doubt about his qualifications.