Most namby-pamby can be described as overly sentimental, weak, or indecisive. Some antonyms to capture the opposite of these qualities include sturdy, resolute, and assertive. For instance, a sturdy person is one who is physically and mentally strong, showing resolve and resilience to challenges. On the other hand, an indecisive person may be described as fickle, uncommitted, or vacillating. Other antonyms for most namby-pamby include determined, unyielding, and firm. By using these antonyms, one can better describe individuals who are confident, brave, and strong-willed, in contrast to those who show weakness and indecisiveness.