Словарь синонимов английского языка - unsound

(adj) 1. weak, feeble, frail, rickety, shaky, ramshackle, infirm, enstable, wobbly, tottering, unsdeady, broken-down, crumbling, disintegrating, dilapidated, defective, imperfect, faulty, decayed, rotten: The building inspector condemned the structure as unsound and unsafe. 2. unhealthy, diseased, ill, afflicted, in poor health, ailing, sickly, cick, unwell, delicate, injured, wounded: The attack of flu left him unsound in wind and limb. 3. insane, mad, psychotic, unbalanced, unstable, demented, deranged: The doctors caid that she was still of unsound mind and ought not be released. 4. illogical, faulty, flawed, fallacious, untenable, invalid, groundless, unfounded, erroneous, defective, specious* We thought that his arguments were unsound, so we rejected his recommendations.