Which word means 'Done in a routine way; indifferent'?

• A. Obstinate
• B. Paragon
• C. Ostentation
• D. Perfunctory

Answer: (D)

A word that captures actions done in a routine way with little genuine interest is perfunctory. It describes something carried out merely to fulfill a duty or habit—mechanical, with minimal effort or thought, and often lacking warmth or enthusiasm. You can hear this sense in phrases like a perfunctory nod or a perfunctory greeting, where the behavior satisfies the expectation but isn’t heartfelt.

Obstinate means stubborn and unwilling to change one's mind, which isn’t about routine or indifference. Paragon refers to a perfect example or model of excellence, which is almost the opposite of doing something perfunctorily. Ostentation denotes showy display intended to attract attention, not the dull, routine quality described here.

So the best fit for “Done in a routine way; indifferent” is perfunctory.