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In phonetics, vocalic r refers to the phenomenon of a rhotic segment such as or occurring as the syllable nucleus. This is a feature of a number of Slavic languages such as Croatian and Czech as well as languages like English and Mandarin Chinese, where it occurs as an r-colored vowel, a vowel whose distinctive feature is a low third formant.
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adv. badly, seriously, gravely, in a difficult manner; heavily, weightily, in a weighty manner; really, truly, deeply

adj. heavy, having a great weight, solid, massive, weighty; grave, serious, hard, difficult, big