satisfactory or acceptable in a limited way

संतोषजनक या सीमित रूप से स्वीकार्य

English Usage: It's all well and good to plan ahead, but you also need to be flexible.

Hindi Usage: आगे की योजना बनाना ठीक-ठाक है, लेकिन आपको लचीला भी होना चाहिए।

average or not especially good

औसत या खास अच्छा नहीं

English Usage: "The restaurant was fair to middling; the food was just okay."

Hindi Usage: "रेस्टोरेंट ठीक-ठाक था; खाना बस ठीक-ठाक था।"