Final answer:
The absolute superlative for 'trabajador' in Spanish is 'trabajadísimo,' without any spelling changes before adding the superlative '-ísimo' suffix.
Step-by-step explanation:
The absolute superlative for trabajador in Spanish involves a spelling change when modifying the adjective. Rather than just adding the usual '-ísimo' ending, trabajador becomes trabajadísimo to signify 'very hardworking' to the highest degree. In this case, there is no spelling change before the superlative suffix as there is with some other adjectives, but be aware that this is not the rule for all adjectives in Spanish. This is simply because the word trabajador ends in a consonant and does not require an accent or any other changes when adding the superlative suffix.