bad: [negative] uninspired: [negative] expensive: [negative] dissapointed: [negative] recommend others to avoid: [negative] do not: [negative] costly: [negative] drawbacks: [negative] drawbacks: [negative] problem: [negative] uneven: [negative] perturbation: [negative] may not: [negative] is not: [negative] are not: [negative] fragil: [negative] damage: [negative] prevent: [negative] can vary: [negative] can not: [negative] cannot: [negative] due to: [negative] thus no longer: [negative] no longer: [negative] annoying: [negative] annoy: [negative] annoys: [negative] annoyed: [negative] saturated: [negative] undesirable: [negative] pollute: [negative] pollutes: [negative] saturates: [negative] saturating: [negative] saturate: [negative] blocked: [negative] dirt: [negative] dirts: [negative] complexity: [negative] tiresome: [negative] does not: [negative] abnormally: [negative] abruptly: [negative] critically: [negative] dangerously: [negative] disadvantages: [negative] disadvantage: [negative] dramatically: [negative] erroneously: [negative] exceedingly: [negative] excessively: [negative] hardly: [negative] heavily: [negative] irreversibly: [negative] poorly: [negative] randomly: [negative] severely: [negative] unacceptably: [negative] unconditionally: [negative] unevenly: [negative] unexpectedly: [negative] unfortunately: [negative] unusually: [negative] uselessly: [negative] badly: [negative] impair: [negative] increasing: [negative] weight: [negative] costs: [negative] cost: [negative] is not: [negative] damage: [negative] complicate: [negative] destroy: [negative] was necessary: [negative] annoy: [negative] annoys: [negative] annoyed: [negative] annoying: [negative] noise: [negative] inevitably: [negative] be annoying: [negative] is annoying: [negative] difficulties: [negative] difficulty: [negative] difficult: [negative] fatty: [negative] prevent: [negative] leakage: [negative] corrosive: [negative] require: [negative] deformation: [negative] necessity: [negative] error: [negative] errors: [negative] occur: [negative] occurs: [negative] may nevertheless: [negative] may not: [negative] continue to increase: [negative] decrease: [negative]