Synonyms of thoroughly in English:

thoroughly


See US English definition of thoroughly

See UK English definition of thoroughly

See Spanish definition of perfectamente

adverb

1‘we will investigate every complaint thoroughly’

SYNONYMS
rigorously, in depth, exhaustively, from top to bottom, minutely, closely, in detail, meticulously, scrupulously, assiduously, conscientiously, painstakingly, methodically, carefully, sedulously, completely, comprehensively, fully, to the fullest extent, intensively, extensively

2‘she is thoroughly spoilt’

SYNONYMS
utterly, downright, absolutely, completely, totally, entirely, beyond, really, perfectly, profoundly, properly, consummately, surpassingly, positively, simply, unconditionally, unreservedly, categorically, incontrovertibly, unquestionably, undeniably, in every respect, through and through, outright
informal plain, clean