sporadic

As an adjective sporadic

is rare and scattered in occurrence.

As an adverb irregularly is

in an irregular manner; without rule, method, or order.

As adjectives the difference between sporadic and impellent

is that sporadic is rare and scattered in occurrence while impellent is having the quality of being impelling.

As a noun impellent is

an impelling power or force.

As adjectives the difference between sporadic and regular

is that sporadic is rare and scattered in occurrence while regular is bound by religious rule; belonging to a monastic or religious order (often as opposed to {{term|secular}}).

As a noun regular is

a member of the British Army (as opposed to a member of the Territorial Army or Reserve).

As adjectives the difference between sporadic and hopeless

is that sporadic is rare and scattered in occurrence while hopeless is without hope; despairing; not expecting anything positive.

As adjectives the difference between sparse and sporadic

is that sparse is having widely spaced intervals while sporadic is rare and scattered in occurrence.

As a verb sparse

is to scatter; to disperse.

As adjectives the difference between continual and sporadic

is that continual is recurring in steady, rapid succession while sporadic is rare and scattered in occurrence.

Sporadic is a synonym of spontaneous.

As adjectives the difference between spontaneous and sporadic

is that spontaneous is self-generated; happening without any apparent external cause while sporadic is rare and scattered in occurrence.

As adjectives the difference between sporadic and ubiquitous

is that sporadic is rare and scattered in occurrence while ubiquitous is being everywhere at once: omnipresent.

As adjectives the difference between sporadic and steady

is that sporadic is rare and scattered in occurrence while steady is firm in standing or position; not tottering or shaking; fixed; firm.

As a verb steady is

to stabilize something; to prevent from shaking.

As a noun steady is

(informal) a regular customer.

As an adjective sporadic

is rare and scattered in occurrence.

As an interjection hello is

.

As a noun hello is

"!" or an equivalent greeting.

As a verb hello is

to greet with "hello".