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Insinuate
Subtle Implication
Use 'insinuate' when suggesting something negative in a roundabout way without claiming it outright. 
Indirectly Pointing
'Insinuate' can show one's reluctance to state something directly, often to avoid confrontation. 
Potentially Offensive
Be cautious, as 'insinuate' can sound accusatory and may offend if the implication is taken negatively. 