необдуманный
temerarius [a, um]
треугольник
triangulum [i, n];
амфибия
amphibion [ii, n];
rugare [1];
cutem adducere [o, xi, ctum];
in rugas replicare [1];
cuti rugas inducere;
+ наморщить лоб frontem corrugare [1] / contrahere [o, xi, ctum] / astringere [o, nxi, ctum];