Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to tranquilliser: tranquilizer, tranquilisers
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tranquilliser - a drug used to reduce stress or tension without reducing mental claritytranquilliser - a drug used to reduce stress or tension without reducing mental clarity
antianxiety drug, anxiolytic, anxiolytic drug, minor tranquilizer, minor tranquilliser, minor tranquillizer - a tranquilizer used to relieve anxiety and reduce tension and irritability
psychotropic agent - a chemical substance that can influence human consciousness
sedative-hypnotic, sedative-hypnotic drug - a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep
مُسَكِّن، مُهَدِّئ
róandi lyf


(trӕŋkwil) adjective
quiet; peaceful. Life in the country is not always tranquil.
ˈtranquilly adverb
tranˈquillity noun
ˈtranquillizer, ˈtranquilliser noun
a drug especially a pill to calm the nerves or cause sleep. He took a tranquillizer.

tranquillity is spelt with two ls.
References in periodicals archive ?
They could always use the tranquilliser darts that they use on wild animals and animals in the zoo.
They included nitrazepam - a hypnotic drug used to treat sleeping problems - and alprazolam, a "potent" tranquilliser.
If the gun that was used could contain deadly shot, why could a tranquilliser gun not have been used?
Riot police were deployed along with snipers armed with tranquilliser darts to help recapture the animals.
Are there any sort of tranquilliser guns available for humans?
I began with a light tranquilliser in school but it gradually stopped affecting me, so I turned to sedatives, which back then were sold freely," says 'Radost', recalling the start of her long history of addiction.
More young people in Birmingham are injecting themselves with horse tranquilliser ketamine to maintain their clubbing "high", according to a latest report.
Then I found out about the MIND tranquilliser withdrawal group.
Audrey Dixon, 59, was first prescribed the tranquilliser Benzodiazepine after suffering a minor bout of post-natal depression at the age of 21.
A poll of European countries places Ireland at the top as the country with the highest amount of benzodiapine - the medical name for tranquilliser - prescriptions.