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1. The use of physical or mental energy to do something; exertion.
2. A difficult exertion of strength or will: It was an effort to get up.
3. A usually earnest attempt: Make an effort to arrive promptly.
4. Something done or produced through exertion; an achievement: a play that was his finest effort.
a. Force applied against inertia.
b. The force needed by a machine to accomplish work on a load.
[Middle English, from Old French esfort, from esforcier, to force, exert, from Medieval Latin exfortiāre : Latin ex-, ex- + Latin fortis, strong; see bhergh- in Indo-European roots.]
ef•fort•ful(ˈɛf ərt fəl)
marked by effort or exertion; labored.
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|Adj.||1.||effortful - requiring great physical effort|
difficult, hard - not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "why is it so hard for you to keep a secret?"
effortless - requiring or apparently requiring no effort; "the swallows glided in an effortless way through the busy air"
1. Requiring great or extreme bodily, mental, or spiritual strength: