Option 1 -> "honest" means truthful and sincere, which is unrelated to irascible.
Option 2 -> "upright" means morally correct and honorable, which does not match the meaning of irascible.
Option 3 -> "controlling" means domineering or exercising authority, but does not capture the essence of being easily angered.
Option 4 -> "ill-tempered" means bad-tempered and easily angered, which is the direct synonym of irascible.
Hence, Option 4: ill-tempered -> "Irascible" describes someone who is quick to anger or irritable, and "ill-tempered" perfectly captures this meaning, explaining why such behavior would not win favors from others -> correct