ベターbetaa

1. na-adjectivebetter; preferable

• SynonymましCasualColloquial: not ideal but still better than the alternative, with a grudging feel, as in 「ないよりまし」. 「ベター」 says positively that one is better, without reluctance.
• Synonymより良いよりよいNeutralSays something is better than before or than another option, as in 「より良い方法」. Fits both casual talk and formal writing; 「ベター」 is a loanword with a more casual feel.
• AntonymワーストNeutralLoanword for the very worst, last place, as in 「ワースト3」. On the good–bad scale it points the opposite way from 「ベター」, which says better.
• Antonym劣るおとるNeutralA verb meaning to be inferior, as in 「性能が劣る」. Where 「ベター」 says one thing beats the others, 「劣る」 says it falls short of them.

To say something is better by comparison, use 「ベター」 or 「より良い」; the latter fits both casual and formal use, while 「ベター」 is a casual loanword. For a grudging 'better than nothing', use 「まし」. 「劣る」 means worse than others; 「ワースト」 means the worst.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. より良よい。