Here's what rhymes with emboldening.

Consider these alternatives

marginalizing / rising antagonizing / rising enrage / stage annoy / boy inflaming / training overdoing / doing demonizing / rising agitate / state oppress / less antagonize / size antagonise / peace solidifying / dying polarize / size terrify / high marginalize / size appeasing / leaving ostracize / size hobble / model radicalize / size politicizing / rising