What does "undeniable" mean?

Irrefutable, or impossible to deny.

What is a synonym for "undeniable"?

Common synonyms include: absolute, actual, admitting no question, arrant, authentic, axiomatic.

adj

adj ·5 syllables ·Moderate ·College level

Adjective

1
Irrefutable, or impossible to deny. not-comparable
"Some believe that there is undeniable evidence of UFOs."

Adjective

"Love undeniably has wings to fly away from love, but it's also undeniable that it also has wings to fly back."

From un- + deny + -able, compare deniable.