i Register
In some senses, myriad is marked as formal. Watch for register when choosing this word.
noun
Ten thousand; 10,000
Ten thousand; 10,000
A countless number or multitude (of specified things)
Earth hosts a myriad of animals.
O Myriads of immortal Spirits, O Powers / Matchleſs, but with th' Almighty, and that ſtrife / Was not inglorious, though th' event was dire,
adj
Multifaceted, having innumerable elements
one night he would be singing at the barred window and yelling down out of the soft myriad darkness of a May night; the next night he would be gone [...].
"As a clinician, it's a difficult symptom to treat," Cornelius said. "The end symptom may be the same, but what's causing it may be myriad."
Great in number; innumerable, multitudinous
Earth hosts myriad animals.
Driven by a perceived political need to adopt a hard-line stance, Mr. Cameron’s coalition government has imposed myriad new restrictions, the aim of which is to reduce net migration to Britain to below 100,000.