This is the 513th most frequent Icelandic word.
minnsta
"Minsta" in Icelandic means "smallest" or "least."
Here, 'minnsta' is used as the superlative form of the adjective 'lítill' (small) in its definite form, agreeing with the noun 'húsið' (the house).
Þetta er minnsta húsið í bænum.
This is the smallest house in the town.
In this sentence, 'minnsta' is used idiomatically to indicate 'slightest,' conveying the least degree of interest, associated with 'áhuga' (interest).
Ég hef ekki minnsta áhuga á þessu.
I do not have the slightest interest in this.
'Minnsta' here functions as a descriptor of 'ummerkjum' (traces), adapting to reflect the minimalist aspect of the noun.