难凭
undependable
adj 1: not worthy of reliance or trust; "in the early 1950s
computers were large and expensive and unreliable";
"an undependable assistant" [syn: {unreliable}] [ant:
{reliable}, {reliable}]
2: not to be trusted [syn: {unreliable}]
3: liable to be erroneous or misleading; "an undependable
generalization" [syn: {unreliable}]