deepened (part of speech: verb)
lowered (part of speech: verb)
intensified (part of speech: verb)
- The flush had deepened in her cheek. - "The Husbands of Edith", George Barr McCutcheon.
- Therefore, when I have been into nearer conversation with Nature I have little to say, but my life is deepened. - "Early Letters of George Wm. Curtis", G. W. Curtis, ed. George Willis Cooke.
- His voice deepened again, as he added gently: It was just a bad dream, dear girl. - "Slippy McGee, Sometimes Known as the Butterfly Man", Marie Conway Oemler.