lightheadedness lightheadedly • lighthearted · · · Info · Definitions · Synonyms · Characters · · lightheadedness · · Text Latin · · Script 15 · · Length Definitions · · · (noun) a reeling sensation; a feeling that you are about to fall. Synonyms: dizziness, giddiness, vertigo. · · Noun Definition 1 (noun) a frivolous lack of prudence. · · Noun Definition 2 Synonyms · · · dizziness · · Synonym 1 giddiness · · Synonym 2 vertigo · · Synonym 3 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 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 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074