a solid word

[Odessa Dawn]

Halfhearted is considered a solid word.

I do mean that hyphenation is excluded. In other words, it is not a hyphenated term. Does this make sense to native speakers?

[5jj]

Halfhearted is considered a solid word.

'Solid word' is not a recognised expression.

I do mean that hyphenation is excluded. In other words, it is not a hyphenated term.

Both 'half-hearted' and 'halfhearted' are used.