Webster's Revised Unabridged Dictionary · 1913

Painful

Painful , adjective

1.
Full of pain; causing uneasiness or distress, either physical or mental; afflictive; disquieting; distressing. — Addison
2.
Requiring labor or toil; difficult; executed with laborious effort; as a painful service; a painful march.
3.
Painstaking; careful; industrious. [Obsolete] — Fuller
A very painful person, and a great clerk. — Jer. Taylor
Nor must the painful husbandman be tired. — Dryden