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

• Lexulous
• Wordscraper
• Wordosaur

adj. Of, relating to, or having rhythm; recurring with measured regularity.

adj. Of or relating to rhythm.

adj. Characterized by rhythm.

adj. Written in verse, especially rhyming verse.

adj. With regular, repetitive motion or sound.

adj. Pertaining to, or of the nature of, rhythm.

Same as rhythmical.

n. Same as rhythmics.

adj. recurring with measured regularity

"Still, the torment was worth it for the precious few minutes he had with them when they were neither awake nor asleep, when they were finally still and their breath began to flatten out in rhythmic heaviness, when their bodies fell slack and rolled in toward him, toward the black-hole depression that he occupied in the middle of the mattress."

swinging    singsong    adonic    swingy    throbbing    measured    jazzy    intoned    chantlike    cadenced   

rhythmic chorea   

unrhythmic    dysrhythmic    rhythmical    irrhythmic    arhythmic    idiorhythmic   

metrical    metric    numerous    cadent   

logarithmic   

rhythmical    muffle    monotonous    musical    steady    melodious    audible    ceaseless    thunderous    harmonious