keeping under one hat (verb) withhold: keep back
Sinonime: ambulatory, discharged, dismissed, gaining strength, getting better, getting over something, getting well,
healing, mending, on the mend, past crisis, perked up, rallying, recovering, rejuvenated, rejuvenating,
released, restored, strengthening
Antonime: failing, faltering, regressing, sickly,
weak, worsening