sustainable

As adjectives the difference between sustainable and ecological

is that sustainable is able to be sustained while ecological is relating to ecology, the interrelationships of organisms and their environment.

As adjectives the difference between sustainable and ethical

is that sustainable is able to be sustained while ethical is (philosophy|not comparable) of or relating to the study of ethics.

As a noun ethical is

an ethical drug.

As adjectives the difference between sustainable and tolerable

is that sustainable is able to be sustained while tolerable is tolerable (capable of being borne, tolerated or endured; bearable or endurable).

As adjectives the difference between reasonable and sustainable

is that reasonable is having the faculty of reason; endued with reason; rational while sustainable is able to be sustained.

As adjectives the difference between sustainable and perpetual

is that sustainable is able to be sustained while perpetual is lasting forever, or for an indefinitely long time.

As an adjective sustainable

is able to be sustained.

As a verb perpetuated is

(perpetuate) to make something be perpetual; (or figuratively) to prolong something.

As adjectives the difference between trustworthy and sustainable

is that trustworthy is deserving of trust, reliable while sustainable is able to be sustained.

As adjectives the difference between eternal and sustainable

is that eternal is lasting forever; unending while sustainable is able to be sustained.