say it: EF-urt-luhs
effortless is an adjective meaning "requiring or apparently requiring no effort". It carries 2 recorded senses.
not showing effort or strain
“a difficult feat performed with casual mastery”
“careless grace”
Definitions, synonyms and semantic relations for effortless come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.