しぶとい
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Base i-adjective form ending in 『い』. Describes a person or quality that is persistent, unyielding, or hard to defeat.
Theme
During a hiking trip, User and their friend Ken are discussing their endurance and persistence on the trail.
しぶとい
しぶとい
tenacious / stubborn
People & IdentityEmotions & Personality
Memory Hook
Think of someone so stubborn they 'shibou' (しぶとい shibutoi) — like a 'she-boo-toy' that won't budge! It sounds like 'she-boo-toy' being tenacious.
Cultural Note
『しぶとい』 (shibutoi, 'tenacious / Stubborn') is often used in sports or business to praise someone's persistence, but it can also describe annoying stubbornness in daily life, depending on context.
Forms
Base: しぶといBase i-adjective form ending in 『い』. Describes a person or quality that is persistent, unyielding, or hard to defeat.
Negative: しぶとくないDrop 『い』 → add 『くない』 (kunai, negative) → 『しぶとくない』 (shibutokunai).
Past: しぶとかったDrop 『い』 → add 『かった』 (katta, past) → 『しぶとかった』 (shibutokatta).
Adverbial: しぶとくDrop 『い』 → add 『く』 (ku, adverbial) → 『しぶとく』 (shibutoku).
Comparative: よりしぶといComparative formed with modifier 『より』 (yori, 'more than') + base adjective.
Superlative: 一番しぶといSuperlative formed with 『一番』 (ichiban, 'number one / Most') + adjective.