ordknapp

Swedish

ord (“word”) +‎ knapp (“scarce”)

ordknapp (comparative mer ordknapp, superlative mest ordknapp)

taciturn, silent, shy; frugal in words, not using more words than necessary
expressive, eloquent; expressing much meaning with few words
Ju ordknappare en dikt är, desto mer innehåll väntar man
The more expressive a poem is, the more content you would expect

As the excerpt shows, the comparative ordknappare can appear, but is rare. The superlative ordknappast would hardly be used.

Inflection of ordknapp
Indefinite	Positive	Comparative	Superlative²
Common singular	ordknapp	mer ordknapp	mest ordknapp
Neuter singular	ordknappt	mer ordknappt	mest ordknappt
Plural	ordknappa	mer ordknappa	mest ordknappa
Definite	Positive	Comparative	Superlative
Masculine singular¹	ordknappe	mer ordknappe	mest ordknappe
All	ordknappa	mer ordknappa	mest ordknappa
1) Only used, optionally, to refer to things whose natural gender is masculine. 2) The indefinite superlative forms are only used in the predicative.