Definition: a refusal to speak when expected
Usage: his silence about my contribution was surprising
Similar words: uncommunicativeness
Definition: the trait of being uncommunicative
Definition: the condition of being unable or unwilling to speak
Usage: her muteness was a consequence of her deafness
Similar words: condition, status
Definition: a state at a particular time
Usage: a condition (or state) of disrepair; the current status of the arms negotiations