rational - English Synonyms Dictionary

rational

n.
[1] rational number
adj.
[1] well-balanced , sane , sound , normal , reasonable , reasoning , logical , ratiocinative , clear-headed , clear-eyed , sober , of sound mind , (Colloq) all there
[2] discriminating , intelligent , thinking , enlightened , prudent , wise , knowledgeable , informed
[3] sensible , intellectual , noetic , common-sense , commonsensical , practical , pragmatic , down-to-earth , everyday , acceptable , reasonable , logical