They show, for example, that his extraordinary exuberances were unforced, leaping by natural impulse from an overcharged source.
In a game lasting over an hour both players showed exceptional athleticism and retrieval skills but also an abundance of unforced errors.
Tired diction here, inappropriate register there; natural, unforced cadence here, resonant phrasing there.
The second started in a similar way to the first with White making unforced errors putting him 4/1 down.
Repeat using unforced consonant " s " and, possibly, other stimuli such as warble tones.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.