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Webster 1828 Edition

Adj.

[See Laudable.] Not laudable; not worthy of approbation or commendation; as an illaudable motive or act.

Worthy of censure or dispraise.

illaudable ‎(comparative more illaudable, superlative most illaudable)

Not laudable; unpraiseworthy.
- 1646, Sir Thomas Browne, Pseudodoxia Epidemica, V.23:
  A custom there is in some parts of Europe, to adorn aqueducts, spouts and cisterns with lions' heads; which though no illaudable ornament, is of an Egyptian genealogy [...].