How to say "strongly" in Japanese

Choosing the right word
  • がっしりJLPT N1approx.Common
    adverb (with と), suru verbCovers 'strongly' only in the physical sense of a solidly built body or sturdily constructed structure; as a mimetic word it evokes that sturdy, solid appearance rather than strength of effort or feeling.
    そのスポーツ選手せんしゅはがっしりした体格たいかくをしていた。↗
    The athlete had a strong build.
  • しっかりJLPT N4approx.Common
    adverb (with と), suru verbMatches 'strongly (built)': like がっしり it describes solid, sturdy construction, but its 'steadily' gloss adds a figurative side — steady, dependable behavior or character — that goes beyond physical build.
  • しきりにJLPT N3approx.Common
    adverbIts 'strongly' gloss is marginal: しきりに really means doing something eagerly, keenly or intently, and it is seldom the word you want when you simply mean strength.
    トムはしきりに新車しんしゃを買かいたがっている。↗
    Tom is eager to buy a new car.

For physical sturdiness of a body or structure use 「がっしり」 or 「しっかり」, with 「しっかり」 also covering steady, dependable behavior, while 「しきりに」 describes eager, intent action rather than strength.

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

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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