This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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• Wordscraper
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adj. Produced or done with effort: the labored breathing of a very ill person.

adj. Lacking natural ease; strained: a labored style of debating.

v. Simple past tense and past participle of labor.

adj. Of an action that is difficult to perform.

adj. Bearing marks of labor and effort; elaborately wrought; not easy or natural

adj. appearing to require strong effort.

Laboriously formed; made or done with laborious pains or care.

Bearing the marks of constrained or forced effort; not easy, natural, or spontaneous: as, a labored style of composition; a labored painting.

adj. requiring or showing effort

adj. lacking natural ease

"It was important to find out how the noise is made, she explained in labored tones."

effortful    awkward   

elaborate   

heavy    laboured    heavy    laboured   

belabored   

sweat-covered    kindest-hearted    non-intrusive    spring-day    best-hearted    Pan-American    yout    homiletical    allegoric    mounts'