Smart alecky is a term used to describe someone who is arrogant, conceited and has a tendency to show off their intelligence. Antonyms for this word can include modest, humble, courteous, respectful, deferential, unassuming or unpretentious. These words describe individuals who embody characteristics such as being unselfish and having a genuine respect for others. They are not boastful and do not seek to make others feel inferior, but rather strive to uplift and encourage others. Using antonyms for the word smart alecky can help to promote positive relationships and interactions with others, while discouraging negative attitudes and behaviors.