The term 'is patient' can be described by three crossword solutions: BIDES (5 letters), waits (5 letters), and holds one's horses (15 letters). BIDES means to endure or tolerate something, usually with patience. Waits is to remain in readiness for something or someone, often with patience. Holds one's horses is an idiom that means to wait patiently and not act impulsively. All three of these words describe the trait of being patient, which is to remain calm and composed in difficult situations.