Synonyms and Antonyms of sustainable
- a line of argument that is probably not sustainable in a public forum against skilled debaters
- He has no sustainable claim to the property without a deed or some other document.
- had set a pace that was too fast to be sustainable
agonizing, appalling, awful, bad, cruel, dire, dreadful, excruciating, frightful, ghastly, grisly, gruesome (also grewsome), harrowing, harsh, hideous, horrendous, horrible, horrid, horrifying, lurid, macabre, monstrous, nasty, nightmarish, painful, rotten, shocking, terrible, tormenting, torturous, unfortunate, vicious, vile, wretched
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