perpetual

Perpetual is a related term of firm.

As adjectives the difference between perpetual and firm

is that perpetual is lasting forever, or for an indefinitely long time while firm is steadfast, secure, hard (in position).

As a noun firm is

(uk|business) a business partnership; the name under which it trades.

As a verb firm is

to make firm or strong; fix securely.

Perpetual is a related term of persevering.

As adjectives the difference between perpetual and persevering

is that perpetual is lasting forever, or for an indefinitely long time while persevering is tending to persevere.

As a noun persevering is

perseverance.

As a verb persevering is

.

As adjectives the difference between habitual and perpetual

is that habitual is behaving in a regular manner, as a habit while perpetual is lasting forever, or for an indefinitely long time.

As adjectives the difference between ongoing and perpetual

is that ongoing is continuing, permanent while perpetual is lasting forever, or for an indefinitely long time.

As a noun ongoing

is something that is going on; a happening.

Unchanging is a related term of perpetual.

As adjectives the difference between unchanging and perpetual

is that unchanging is remaining constantly unchanged while perpetual is lasting forever, or for an indefinitely long time.

Perpetual is a related term of extensive.

As adjectives the difference between perpetual and extensive

is that perpetual is lasting forever, or for an indefinitely long time while extensive is in the nature of an extent, wide, widespread.

As adjectives the difference between perpetual and prolonged

is that perpetual is lasting forever, or for an indefinitely long time while prolonged is lengthy in duration; extended; protracted.

As a verb prolonged is

past tense of prolong.

Steady is a related term of perpetual.

As adjectives the difference between steady and perpetual

is that steady is firm in standing or position; not tottering or shaking; fixed; firm while perpetual is lasting forever, or for an indefinitely long time.

As a verb steady

is to stabilize something; to prevent from shaking.

As a noun steady

is (informal) a regular customer.

As an adjective perpetual

is lasting forever, or for an indefinitely long time.

As an acronym pet is

(organic compound) polyethylene terephthalate.