Ramrod straight
Definition 1 of 1
Pro Tip 1/3Posture Emphasis
Emphasizes impeccable or disciplined posture, often associated with military or formal contexts. 
The guards stood ramrod straight as the dignitaries passed.
Pro Tip 2/3Attention to Detail
Indicates a character trait of meticulousness or conveying an intense focus and seriousness. 
During the debate, he remained ramrod straight, displaying his concentration.
Pro Tip 3/3Physical Rigidity
Suggests stiffness or lack of relaxation in a person's body, potentially due to tension or alertness. 
She stood ramrod straight, tense with anticipation before her performance.