Describes something that is not reasonable, not feasible, or cannot be done. Covers both logical impossibility and practical infeasibility.
I think this plan is impossible.
そんな無理な要求には応じられない。
I can't comply with such an unreasonable demand.
Often used adverbially as 無理に to mean doing something forcibly or against someone's will.
無理に食べさせるのはよくない。
It's not good to force someone to eat.
彼は無理に笑った。
He forced a smile.
excessive; overdoing
Refers to pushing oneself too hard, overworking, or doing something beyond one's limits. The verb form 無理する is common.
無理なダイエットは体に悪い。
Excessive dieting is bad for your health.
あまり無理しないでください。
Please don't overdo it.
no way!; impossible!
Colloquial interjection expressing strong disbelief or refusal.
「明日までに終わる？」「無理！」
"Can you finish by tomorrow?" "No way!"
noun which may take the genitive case particle 'no'
Mathematical term for irrational numbers.
√2は無理数である。
√2 is an irrational number.
It's impossible to finish this work by the end of today.
He forced a smile.
If you overwork yourself, you'll ruin your health.
The boss is careful not to make his subordinates overwork themselves.
困難 describes something difficult but still achievable with effort, whereas 無理 suggests it is beyond possibility or reasonable limits.
強引 describes a person's forceful, pushy manner of acting, while 無理 describes an action or demand itself as forced or unreasonable.
irrational expression
irrational number
unreasonable idea; illogical plan · illogical move (in shogi or go)
lack of understanding; lack of sympathy
I can't take it anymore; I've had it
forcibly; by force; against one's will
reasonably; comfortably; without straining oneself
impossibly hard video game
forced compliance; coercion; compulsion
pushing through; bulldozing; forcing