highlife high-level radioactive waste • high life · · · Info · Definitions · Synonyms · Characters · · highlife · · Text Latin · · Script 8 · · Length 2 · · Syllables Definitions · · · (noun) excessive spending. Synonyms: extravagance, prodigality, lavishness, high life. · · Noun Definition 1 Synonyms · · · extravagance · · Synonym 1 prodigality · · Synonym 2 lavishness · · Synonym 3 high life · · Synonym 4 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C