strängiger
Strängiger is not a standard lexical item in German or in most Germanic-language dictionaries. In conventional German, the adjective streng (strict) forms the comparative as strenger and the superlative as am strengsten. The spelling strängiger would be considered nonstandard or incorrect in formal German, and it does not appear as an accepted lemma in major reference works.
Possible origins and interpretations
The form strängiger may arise from misspelling, typographical error, or influence from other languages that use
In formal writing, avoid strängiger and use the standard German forms strenger or am strengsten depending on
streng, strenger, am strengsten; strängare (Swedish); strenge (Danish/Norwegian variants)