Synonyms for Cohesiveness (same or very similar meaning)
WordNet sense 1 (the state of cohering or sticking together):
coherence, coherency, cohesionWordNet sense 2 (the property of being cohesive and sticky):
tackiness, glueyness, gluiness, gumminess, ropiness, viscidity, viscidnessFrom the ODE community, based on WordNetadd/edit