adjective
1.
Synonyms: numb 1, anesthetized, asleep, benumbed, dead, deadened, insensible, insensitive, numbed, unfeeling
Related Word: oblivious, unaware; inanimate, wooden
2.
Synonyms: insensate 1, inanimate, insensible, insentient, unfeeling
3.
Synonyms: insensible 2, cold, comatose, inconscious, unconscious
4.
Synonyms: simple 3, brainless, foolish, mindless, nitwitted, silly, unwitty, weak-headed, weak-minded, witless
Related Word: irrational, surd
5.
having no meaning
an ancient custom, now outdated and senseless
Synonyms: insignificant, meaningless, pointless, purportless, unmeaning
Related Word: purposeless; trivial, unimportant
Idioms: without rhyme or reason
Contrasted words: purposeful; important, meaning, meaningful, significant