| kontemplativ | contemplative |
| Kontemplation | contemplation |
| konservativ | conservative tory |
| Konvervative | conservative |
| konfrontativ | confrontational contrastive |
| kontrazeptiv | contraceptive |
| Konstellation | constellation |
| Kontamination | amalgam blending |
| konativ | conative |
| konsekutiv | consecutive |
| konspirativ | conspirative |
| kontemporär | at the same time simultaneous |
| kumulativ | cumulative |
| kooperativ | cooperative |
| Kinematik | kinematics |
| Komitativ | comitative case |
| Komparativ | comparative |
| katenativ | catenative |
| kommutativ | commutative |
| komputativ | computational computative |