executed without negligence or omissions

a thorough search.

complete; perfect; utter

thorough enjoyment.

extremely attentive to accuracy and detail; painstaking

a thorough worker; a thorough analysis.

having full command or mastery of an art, talent, etc.

a thorough actress.

extending or passing through.

Archaic . through.

( initial capital letter ) English History . the administrative policies of the Earl of Stafford and Archbishop Laud during the reign of Charles I

so called because they were uncompromisingly carried out.

adverb

incompletely , inexhaustively , partially , superficially , deficiently , inadequately

adverb

all , assiduously , carefully , completely , comprehensively , conscientiously , earnestly , efficiently , exceedingly , exceptionally , extremely , flat out * , from a to z , from top to bottom , fully , hard , highly , hugely , in and out , in detail , inside out * , intensely , intensively , meticulously , notably , painstakingly , remarkably , scrupulously , strikingly , sweepingly , through and through , throughout , unremittingly , up and down , very , whole hog * , wholly , absolutely , altogether , downright , entirely , perfectly , plumb , quite , totally , to the full , well , without reservation , dead , flat , just , utterly , exhaustively , in all