Synonyms and Antonyms of sustainable
- a line of argument that is probably not sustainable in a public forum against skilled debaters
- has no sustainable claim to the property without a deed or some other document
- the general didn't think that such heavy casualties could be sustainable for much longer
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
Seen and Heard
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