faltered, floundered, fizzled, stalled, spluttered, struggled, stumbled, imploded, stagnated, tanked, sagged, slowed, languished, stuttered, foundered, petered, plodded, flopped, misfiring, lurched, wheezed, plummeted, stymied, moribund, unraveled, rebounded, grinded, lagged, flamed, wobbled, disintegrated, trailed, faded, zigzagged, spiraled, cooled, roared, mustered, sizzled, punchless, flickered, regressed, wilted, throttled, coasted, dropped, backslid, bumbled, vaunted, crumbled, punted, stifled, started, plunged, slumping, decelerated, waned, exploded, evaporated, dipped, boomed, jelled, fell, submarined, pounded, sapped, sparkled, ran, screeched, gashing, stunk, resumed, rumbled, failed, inched, ebbed, tumbled, halted, revved, rolled, slipped, deflating, hovered, perked, seesawed, flourished, bolted, thrived, dwindled, squeaked, steamrolled, quieted, bounced, conked, coughed, reemerged, sank, snuffed, decimated, began, seemed, fluctuated, deposited, nanostructured, alloyed, monocrystalline, polycrystalline, bombarded, sintered, ablated, annealed, anodized, mesoporous, nonporous, oxidized, amorphous, metallic, nitrided, noncrystalline, recrystallized, ferromagnetic