| Subject | English | German |
| med. | emotionally unstable personality | emotiver Psychopath |
| med. | emotionally unstable personality | Affektmensch |
| gen. | emotionally unstable personality disorder | emotional instabile Persönlichkeitsstörung |
| earth.sc., mech.eng. | longitudinally unstable equilibrium point | längslabiler Gleichgewichtspunkt |
| gen. | more unstable | haltloser |
| gen. | more unstable | haltlosere |
| gen. | most unstable | am haltlosesten |
| gen. | most unstable | haltloseste |
| gen. | separation of unstable elements | Ausfällen unbeständiger Inhaltsstoffe |
| gen. | unstable angina | instabile Angina |
| el. | unstable arc | instabiler Lichtbogen |
| gen. | unstable configuration | instabile Anordnung |
| life.sc. | unstable control | unstabile Kontrolle |
| transp., construct. | unstable equilibrium | instabiles Gleichgewicht |
| transp., construct. | unstable equilibrium | unsicheres Gleichgewicht |
| agric., mech.eng. | unstable equilibrium | labiles Gleichgewicht |
| chem. | Unstable explosives. | Instabil, explosiv. |
| transp. | unstable flow | instabiler Verkehrsfluss |
| commun., transp. | unstable flow | unstabiler Verkehrsfluss |
| mater.sc. | unstable flow behaviour | Instabilität im Fließverhalten |
| earth.sc., met. | unstable fracture | instabiler Bruch |
| chem., el. | unstable ground | Flugboden |
| life.sc., agric. | unstable humus | Nährhumus |
| life.sc., agric. | unstable humus | leicht zersetzbarer Humus |
| life.sc. | unstable layer | instabile Schicht |
| earth.sc. | unstable oscillation | labile oder unstete Schwingung |
| life.sc. | unstable reach | Umlagerungsstrecke |
| tech. | unstable region | instabiler Bereich |
| earth.sc. | unstable skin current profile | instabiles Skinstromprofil |
| life.sc. | unstable slope | Rutschhang |
| life.sc., construct. | unstable slope | Rutschterrain |
| med. | unstable static blood pressure regulation | statisch-labile Druckregelung |
| med. | unstable static blood pressure regulation | hypotone und hypodyname Regulationsstoerung |