The phrase "suggestive comment" can have various synonyms depending on the context and level of inappropriateness. Some alternatives for less provocative occasions are hint, innuendo, insinuation, implication, or allusion. On a more risque level, one could use terms such as lewd remark, double entendre, sexual insinuation, or flirtatious suggestion. Other options may include vulgar suggestion, offensive remark, or indecent proposal, which highlight the suggestive nature more blatantly and with a negative connotation. Ultimately, the choice of synonym depends on the degree of sensitivity and social appropriateness one aims to convey while describing a suggestive comment.