perpetual

Durable is a related term of perpetual.

As adjectives the difference between durable and perpetual

is that durable is able to resist wear, decay; lasting; enduring while perpetual is lasting forever, or for an indefinitely long time.

As a noun durable

is (economics) a durable good, one useful over more than one period, especially a year.

Perpetual is a related term of imperishable.

As adjectives the difference between perpetual and imperishable

is that perpetual is lasting forever, or for an indefinitely long time while imperishable is not perishable; not subject to decay; indestructible; enduring permanently; as, an imperishable monument; imperishable renown.

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.