Describes physical objects, structures, or bodies that are robust, hard to break, or well-built. Can also refer to a person's sturdy build.
This desk is solid and looks like it will last a long time.
彼は頑丈な体つきをしている。
He has a sturdy build.
This table is very sturdy.
He has a sturdy build.
This bridge is built to be very sturdy.
This safe has a sturdy construction and doesn't break easily.
頑丈 stresses sturdiness and durability especially of physical objects, while 強靭 adds a nuance of flexible resilience that bends without breaking.
強い is a broad word for strength in many senses, whereas 頑丈 is narrower, used only for physically solid, rugged construction like furniture or buildings.
頑丈 describes something sturdy and durable in construction, whereas 硬い focuses on the surface or material being hard to the touch.
頑丈 usually describes the physical sturdiness of a body or object, while 剛健 is reserved for a person's character and carries a nuance of moral strength.
頑丈 is a な-adjective meaning sturdy/robust and is used more for objects and materials, while がっしり is an on-mimetic adverb often describing a person's build.
頑丈 describes an object or structure as sturdily built and durable, while がっちり can also describe a person's muscular, well-built physique.
頑丈 emphasizes physical sturdiness, especially of objects or bodies, while タフ leans more toward resilience under pressure and can describe personality or situations too.
頑丈 describes something sturdy and hard to break, the opposite of a デリケート object that is fragile and easily damaged.