antiruido?

[AngledLuffa]

• not a participle
• doesn't inflect for either Number or Gender?

# sent_id = es-train-002-s132
# text = Ya en la plataforma una serie de vallas y pantallas antiruido guían a los pasajeros hasta su avión.
1       Ya      ya      ADV     _       _       12      advmod  _       _
2       en      en      ADP     _       _       4       case    _       _
3       la      el      DET     _       Definite=Def|Gender=Fem|Number=Sing|PronType=Art        4       det     _       _
4       plataforma      plataforma      NOUN    _       Gender=Fem|Number=Sing  12      obl     _       _
5       una     uno     DET     _       Definite=Ind|Gender=Fem|Number=Sing|PronType=Art        6       det     _       _
6       serie   serie   NOUN    _       Gender=Fem|Number=Sing  12      nsubj   _       _
7       de      de      ADP     _       _       8       case    _       _
8       vallas  valla   NOUN    _       Gender=Fem|Number=Plur  6       nmod    _       _
9       y       y       CCONJ   _       _       10      cc      _       _
10      pantallas       pantalla        NOUN    _       Gender=Fem|Number=Plur  8       conj    _       _
11      antiruido       antiruido       ADJ     _       Gender=Masc|Number=Sing|VerbForm=Part   6       amod    _       _
12      guían   guiar   VERB    _       Mood=Ind|Number=Plur|Person=3|Tense=Imp|VerbForm=Fin    0       root    _       _
13      a       a       ADP     _       _       15      case    _       _
14      los     el      DET     _       Definite=Def|Gender=Masc|Number=Plur|PronType=Art       15      det     _       _
15      pasajeros       pasajero        NOUN    _       Gender=Masc|Number=Plur 12      obj     _       _
16      hasta   hasta   ADP     _       _       18      case    _       _
17      su      su      DET     _       Number=Sing|Person=3|Poss=Yes|PronType=Prs      18      det     _       _
18      avión   avión   NOUN    _       Gender=Masc|Number=Sing 12      obl     _       SpaceAfter=No
19      .       .       PUNCT   _       PunctType=Peri  12      punct   _       _

so it should just have all its features removed, right?

[dan-zeman]

This is not the first time we are discussing anti something. Instead of discussing each separately, could we come up with a rule? My impression is that it is always anti + NOUN, the result is an ADJ but it does not inflect for gender or number, hence it does not have any features.

Are there counterexamples that do not fit this pattern?

[AngledLuffa]

just going through the existing treebanks a bit:

anticonceptivos ? i think that can be inflected both N & G

antiaéreas - anti-air

antimonárquico / antimonárquica

anticuerpos ? not sure if that can be ADJ, especially in its pluralized form

antiética / antiético

antiséptico / antiséptica

anti - guo? ha, i make a joke

unfortunately the conclusion i come to is that there are many anti- words that inflect. However, that doesn't necessarily invalidate your conclusion. anti + NOUN might not inflect whereas anti + ADJ for an existing ADJ might inflect...