Similar words
bobo
bobo and tonto are close synonyms for "silly, stupid," largely interchangeable.
Similar in other languages
German
lächerlich
Close — silly, stupid relates to ridiculous.
German
närrisch
Close — foolish, crazy relates to silly, stupid (tonto).
Practice
1 What does tonto mean?
silly, stupid
2 Fill the gap: No seas ___.
Full sentence: No seas tonto. (Don't be silly.)
3 Which fingerprint chart matches tonto?
tonto: neutral register, core frequency, general domain, negative connotation.