Words Of Limitation

adjective used to describe something that cannot be done or achieved

• It is deemed impossible to achieve a perfect score without sufficient preparation.
• It's impossible to finish this game without cheating.
• No way in hell can you pass that test without studying, it's impossible.
• Breaking through the barriers of self-doubt may seem impossible, but with perseverance, it can be conquered.

adjective describing a person or thing that lacks the ability or skill to do something

• Despite multiple attempts, the team was unable to meet the project deadline.
• I was unable to reach the customer service representative on the phone.
• I'm sorry, I was unable to make it to the party last night.
• His fear was like a heavy weight on his chest, leaving him unable to move.