assimilatory (adjective) assimilative: absorbent
Sinonime: basely, behind one's back, crookedly, dishonestly, dishonorably, disloyally, faithlessly, falseheartedly, malevolently, maliciously, perfidiously, roguishly, traitorously, treacherously, underhandedly, unfaithfully, unscrupulously
Antonime: honestly, truthfully