truth serum truth-seeking • truth-shod · · · Info · Definitions · Synonyms · Characters · · truth serum · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) an intravenous anesthetic drug that has a hypnotic effect; induces relaxation and weakens inhibitions; is believed to induce people to talk freely. Synonyms: truth serum, truth drug. · · Noun Definition 1 Synonyms · · · truth drug · · Synonym 1 Characters · · space U+0020 e latin small letter e U+0065 h latin small letter h U+0068 m latin small letter m U+006D r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075