To enhance the performance and efficiency of business processes, it is essential to take the dynamics of their execution context into account during process modelling. This paper first proposes an evaluation framework that identifies the main requirements for supporting the modelling of context-adaptive processes. Using this framework, we analyse four popular business process modelling languages: Coloured Petri Nets (CPN), Business Process Modelling and Notation 2.0 (BPMN), Yet Another Workflow Language (YAWL), and Unified Modelling Language Activity Diagrams (UML AD). The analysis is carried out by evaluating how the respective language notations fulfil the identified requirements in several real-life scenarios. Lastly, a comparative analysis of the languages focussed on their support for modelling context-adaptive business processes is provided.