front office (noun) front office: executive office
Sinonime: adamancy, bullheadedness, contumacy, die-hardism, doggedness, grimness, implacability, implacableness, incompliancy, indomitability, inexorability, inexorableness, inflexibility, inflexibleness, intransigence, intransigency, mulishness, obduracy, obdurateness, obstinacy, perseverance, pertinacity, pigheadedness, relentlessness, remorselessness, rigidity, rigidness