Definition of feckful in US English:

feckful

adjective

  • 1Chiefly Scottish and English regional (northern). Powerful, effective, efficient, vigorous.

  • 2Chiefly humorous. Responsible; not feckless.

Origin

Mid 16th century. From feck + -ful.

Pronunciation

feckful

/ˈfɛkf(ʊ)l/