Many older adults lack the resources to maintain active roles in society.

One variation is that some adults lack a midlife crisis.

Twenty million to 30 million American adults lack in basic skills, including reading, writing and problem-solving, said the report, based on a six-month study.

A non-breeding adult will lack the crests and have more yellowish skin around the face.

Do adults lack a visual literacy that children have instinctually?

However, large adults are uniformly grey and lack the striping.

In other instances, the older adult may lack the needed resources, as a result of poverty, or other social condition.

Drop-out rates are high, and many adults lack high school diplomas.

If adults lack partnership, their needs can usually be met by family and/or friend relationships.

On the other hand, adults can be curiously lacking in perception.