厚い
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Base i-adjective form ending in 『い』. Describes physical thickness of objects like books or blankets.
Theme
Two friends, Yuki and User, are shopping for winter coats in a department store, discussing the thickness of different options.
厚い
あつい
thick
Core Language Building BlocksCore Adjectives
Memory Hook
Think of a thick, warm blanket that shows kindness — 'atsu' in 『厚い』 (atsui, 'thick / Kind') sounds like 'at you' with warmth.
Cultural Note
『厚い』 (atsui) is used in expressions like 『厚い友情』 (atsui yuujou, 'deep friendship') to describe strong, warm relationships in Japanese culture.
Forms
Base: 厚いBase i-adjective form ending in 『い』. Describes physical thickness of objects like books or blankets.
Negative: 厚くないDrop 『い』 → add 『くない』 (kunai, negative) → 『厚くない』 (atsukunai).
Past: 厚かったDrop 『い』 → add 『かった』 (katta, past) → 『厚かった』 (atsukatta).
Adverbial: 厚くDrop 『い』 → add 『く』 (ku, adverbial) → 『厚く』 (atsuku).
Comparative: より厚いComparative formed with modifier 『より』 (yori, 'more than') + base adjective.
Superlative: 一番厚いSuperlative formed with 『一番』 (ichiban, 'number one / Most') + adjective.