"In spite of being warned repeatedly, he failed to correct his _________ behaviour." The word that best fills the blank in the above sentence is A. rational B. reasonable C. errant D. good

GATE 2018 · General Aptitude · Most Appropriate Word · medium

Answer: Option C (errant) is correct. Errant means deviant or wrong, matching behaviour that prompted repeated warnings.

1. Eliminate options with positive or neutral meaning: A. rational - means logical/sensible; you would not warn someone to correct rational behaviour. B. reasonable - means fair/sensible; same problem as rational. D. good - means virtuous; no one warns you to correct good behaviour. All three are eliminated.
2. Confirm 'errant' fits: C. errant - means straying from the right path or behaving badly. 'Failed to correct his errant behaviour despite repeated warnings' is natural and coherent: the behaviour was wrong, others warned him, but he persisted.