cheerful

As a noun heartful

is an amount of emotion considered to be present in the heart.

As an adjective cheerful is

noticeably happy and optimistic.

As adjectives the difference between smiley and cheerful

is that smiley is cheerful and happy; smiling while cheerful is noticeably happy and optimistic.

As a noun smiley

is (rare) a simplified representation of a smiling face.

As adjectives the difference between colourful and cheerful

is that colourful is while cheerful is noticeably happy and optimistic.

As an adjective cheerful

is noticeably happy and optimistic.

As a noun delight is

joy; pleasure.

As a verb delight is

to give delight to; to affect with great pleasure; to please highly.

As adjectives the difference between redundant and cheerful

is that redundant is superfluous; exceeding what is necessary while cheerful is noticeably happy and optimistic.

As an adjective cheerful

is noticeably happy and optimistic.

As a verb enchant is

to attract and delight, to charm.

As adjectives the difference between morbid and cheerful

is that morbid is (originally) of, or relating to disease while cheerful is noticeably happy and optimistic.

As adjectives the difference between boisterous and cheerful

is that boisterous is full of energy; exuberant; noisy while cheerful is noticeably happy and optimistic.

As an adverb gaily

is merrily.

As an adjective cheerful is

noticeably happy and optimistic.

As adjectives the difference between fretful and cheerful

is that fretful is irritable, bad-tempered, grumpy or peevish while cheerful is noticeably happy and optimistic.