Fill in the blank with the appropriate word:
He earned a ____ livelihood by gambling.

Precarious (adjective)
Synonyms: Insecure (আত্মবিশ্বাসহীন), Unreliable (অনির্ভরযোগ্য), Risky (ঝুঁকিপূর্ণ).
Antonyms: Safe (নিরাপদ), Secure (উদ্বেগমুক্ত; নিঃশঙ্ক).
English Meaning: In danger because not firmly fixed; likely to fall or suffer harm.
Bangla Meaning: (আনুষ্ঠানিক) অনিশ্চিত; আশঙ্কাজনক; দৈবাধীন: make a precarious living as a freelance.
Other Forms: Precariously (adverb) অনিশ্চিতভাবে।
Example Sentence: ‘he made a precarious living as a painter’

Source: Merriam-Webster Dictionary