粘性|ねんせいnensei[0]heiban (flat)

1. no-adjectiveviscous; sticky; gluey
2. noun, physicsviscosity

• Synonym粘りねばりNeutralEveryday word for stickiness; it also figuratively means the tenacity to see something through, as in 「粘りを見せる」.
• Related粘着力ねんちゃくりょくWrittenWritten/formal term for the force with which something sticks to an object; it stresses adhesive power, while 「粘性」 stresses the thickness of a fluid.
• Related粘着性ねんちゃくせいWrittenWritten/formal word for the tendency to stick to other things, typical of tape and glue; it is about adhesion rather than the thickness of a fluid.
• AntonymさらさらNeutralDescribes something dry and smooth with no stickiness, or flowing freely; the opposite of 「粘性」. It can also describe a light rustling sound.
• Antonym流動性りゅうどうせいNeutralThe property of flowing easily like a liquid, the opposite of viscous thickness; in finance it also means the liquidity of funds.

Everyday speech favors 「粘り」 or 「ねばねば」; use 「粘性」 for the viscosity of a fluid in physical or technical contexts, 「粘着力」 for the adhesive force of tape or glue, and 「さらさら」 for something dry and not sticky.

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

1. 流動りゅうどうする液体えきたいの内部ないぶでお互たがいの流体りゅうたいが抵抗ていこうしあう性質せいしつ。粘度ねんど。
2. 粘ねばる性質せいしつ。粘り気ねばりけ。