Naturalness

n.calm, kindwarm

What it means

The quality of being relaxed, genuine, and unforced.

Reach for it when praising an unaffected manner or a result that does not feel contrived

The speaker's naturalness made the formal event feel welcoming.

everyday
ease
when relaxed delivery is more important than whether it was planned
not when Ease can be carefully performed and therefore need not imply naturalness.
everyday
informality
when relaxed conventions create the effect
not when Informality can be careless, and formal behavior can still have naturalness.
warm
sincerity
when honest feeling matters more than polish
not when Sincerity does not prevent stiff or highly formal expression.
warm
spontaneity
when freshness comes from acting without rehearsal
not when A spontaneous act can be awkward, while naturalness concerns how easily it lands.
professional
authenticity
when truth to a person's character or values is the main claim
not when Authenticity is a moral and identity claim, while naturalness may only describe manner.
professional
fluency
when smooth command makes the performance seem unforced
not when Fluency measures command, not genuineness or lack of artifice.
formal
unaffectedness
when absence of pretension is the precise point
not when The uncommon abstract noun can sound clinical in personal praise.

sense of naturalness
The unscripted questions gave the interview a welcome sense of naturalness.
conversational naturalness
Her conversational naturalness made the technical explanation easy to follow.
apparent naturalness
The performance's apparent naturalness rested on months of disciplined rehearsal.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.