late Middle English (in the sense obtained by suppression of the truth): from Latin surreptitius(from the verb surripere, from sub-secretly + rapereseize) + -ous
英英釋義網絡釋義
noun
1.marked by quiet and caution and secrecy; taking pains to avoid being observed;
a furtive manner
2.conducted with or marked by hidden aims or methods;