entirely

As adverbs the difference between only and entirely

is that only is without others or anything further; exclusively while entirely is to the full or entire extent.

As an adjective only

is alone in a category.

As a conjunction only

is under the condition that; but.

As a noun only

is only child.

Deeply is a synonym of entirely.

As adverbs the difference between deeply and entirely

is that deeply is at depth, in a deep way while entirely is to the full or entire extent.

As an adverb entirely is

to the full or entire extent.

Downright is a related term of entirely.

As adverbs the difference between downright and entirely

is that downright is really; actually; quite; thoroughly; utterly while entirely is to the full or entire extent.

As an adjective downright

is directed vertically; coming straight down.

As adverbs the difference between solely and entirely

is that solely is alone; exclusively while entirely is to the full or entire extent.

As adverbs the difference between greatly and entirely

is that greatly is nobly; magnanimously while entirely is to the full or entire extent.

As an adverb entirely is

to the full or entire extent.

Entirely is a related term of demonstrably.

As adverbs the difference between entirely and demonstrably

is that entirely is to the full or entire extent while demonstrably is in such a manner as to be capable of being demonstrated, shown or proved.

Entirely is a related term of horribly.

As adverbs the difference between entirely and horribly

is that entirely is to the full or entire extent while horribly is (manner) in a horrible way; very badly.

Entirely is a related term of precisely.

As adverbs the difference between entirely and precisely

is that entirely is to the full or entire extent while precisely is (manner) in a precise manner; exactly.